Fix ChangelogTasks for empty lines (#1130)

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_1.md

@@ -0,0 +1,49 @@
+Some text at the top of the changelog file.
+
+# Changelog
+
+This format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+## [Unreleased]
+
+### Added
+
+- Added something
+
+### Fixed
+
+- Fixed something
+
+## [1.4.0] - 2023-01-05
+
+### Added
+
+- First item
+- Second item
+
+### Changed
+
+- Fixed something
+- Fixed something else
+
+## [1.0.0] - 2023-01-03
+
+### Removed
+
+- Removed something
+
+## [0.2.0] - 2023-01-02
+
+### Added
+
+- Some text that spans
+  multiple lines
+- A text on a single line
+
+## [0.1.0] - 2023-01-01
+
+### Added
+
+- Added something
+
+Some text at the end of the changelog file.

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_1.verified.txt

@@ -0,0 +1,84 @@
+[
+  {
+    IsEmpty: false,
+    Unreleased: true,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Added something,
+      ,
+      ### Fixed,
+      ,
+      - Fixed something,
+
+    ],
+    StartIndex: 6,
+    EndIndex: 15
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 1.4.0,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - First item,
+      - Second item,
+      ,
+      ### Changed,
+      ,
+      - Fixed something,
+      - Fixed something else,
+
+    ],
+    StartIndex: 16,
+    EndIndex: 27
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 1.0.0,
+    Notes: [
+      ,
+      ### Removed,
+      ,
+      - Removed something,
+
+    ],
+    StartIndex: 28,
+    EndIndex: 33
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 0.2.0,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Some text that spans,
+        multiple lines,
+      - A text on a single line,
+
+    ],
+    StartIndex: 34,
+    EndIndex: 41
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 0.1.0,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Added something,
+      ,
+      Some text at the end of the changelog file.
+    ],
+    StartIndex: 42,
+    EndIndex: 48
+  }
+]

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_2.md

@@ -0,0 +1,19 @@
+# Changelog
+
+This format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+## [Unreleased]
+
+### Added
+
+- Some text that spans
+  multiple lines
+
+- A text on a single line
+
+
+## [1.0.0] - 2023-01-01
+
+### Fixed
+
+- Fixed something

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_2.verified.txt

@@ -0,0 +1,32 @@
+[
+  {
+    IsEmpty: false,
+    Unreleased: true,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Some text that spans,
+        multiple lines,
+      ,
+      - A text on a single line,
+      ,
+
+    ],
+    StartIndex: 4,
+    EndIndex: 13
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 1.0.0,
+    Notes: [
+      ,
+      ### Fixed,
+      ,
+      - Fixed something
+    ],
+    StartIndex: 14,
+    EndIndex: 18
+  }
+]

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_3.md

@@ -0,0 +1,53 @@
+Some text at the top of the changelog file.
+
+#    Changelog
+
+This format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+## [Unreleased]
+
+### Added
+
+- Added something
+
+  ### Fixed
+
+-       Fixed something
+
+## [1.4.0] - 2023-01-05
+
+### Added    
+
+
+
+
+- First item
+
+- Second item
+
+###          Changed
+
+- Fixed something
+- Fixed something else
+
+## [1.0.0] - 2023-01-03
+
+### Removed
+
+             - Removed something
+
+## [0.2.0] - 2023-01-02
+
+### Added
+
+- Some text that spans
+  multiple lines
+- A text on a single line
+
+## [0.1.0]   -     2023-01-01    
+
+### Added
+
+- Added something
+
+    Some text at the end of the changelog file.

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_3.verified.txt

@@ -0,0 +1,88 @@
+[
+  {
+    IsEmpty: false,
+    Unreleased: true,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Added something,
+      ,
+        ### Fixed,
+      ,
+      -       Fixed something,
+
+    ],
+    StartIndex: 6,
+    EndIndex: 15
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 1.4.0,
+    Notes: [
+      ,
+      ### Added    ,
+      ,
+      ,
+      ,
+      ,
+      - First item,
+      ,
+      - Second item,
+      ,
+      ###          Changed,
+      ,
+      - Fixed something,
+      - Fixed something else,
+
+    ],
+    StartIndex: 16,
+    EndIndex: 31
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 1.0.0,
+    Notes: [
+      ,
+      ### Removed,
+      ,
+                   - Removed something,
+
+    ],
+    StartIndex: 32,
+    EndIndex: 37
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 0.2.0,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Some text that spans,
+        multiple lines,
+      - A text on a single line,
+
+    ],
+    StartIndex: 38,
+    EndIndex: 45
+  },
+  {
+    IsEmpty: false,
+    Unreleased: false,
+    Version: 0.1.0,
+    Notes: [
+      ,
+      ### Added,
+      ,
+      - Added something,
+      ,
+          Some text at the end of the changelog file.
+    ],
+    StartIndex: 46,
+    EndIndex: 52
+  }
+]

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_4.md

@@ -0,0 +1,7 @@
+# Changelog
+This format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+## [Unreleased]
+### Added
+- Some text that spans
+  multiple lines
+- A text on a single line

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_4.verified.txt

@@ -0,0 +1,14 @@
+[
+  {
+    IsEmpty: false,
+    Unreleased: true,
+    Notes: [
+      ### Added,
+      - Some text that spans,
+        multiple lines,
+      - A text on a single line
+    ],
+    StartIndex: 2,
+    EndIndex: 6
+  }
+]

source/Nuke.Common.Tests/ChangelogReferenceFiles/changelog_reference_1.0.0_variant_5.md

@@ -0,0 +1,10 @@
+# Changelog
+This format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+## [Unreleased]
+### Added
+- Some text that spans
+  multiple lines
+- A text on a single line
+## [0.2.3] - 2023-01-02
+### Fixed
+- Fixed something