fix: data merging #265

Job	Run time
Test on ubuntu-latest / 3.0.5	1m 50s
Test on ubuntu-latest / stable	1m 39s
Test on ubuntu-latest / beta	1m 39s
Test on ubuntu-latest / dev	1m 40s
Test on windows-latest / 3.0.5	2m 50s
Test on windows-latest / stable	2m 42s
Test on windows-latest / beta	2m 18s
Test on windows-latest / dev	2m 50s
Test on macos-latest / 3.0.5	2m 57s
Test on macos-latest / stable	1m 57s
Test on macos-latest / beta	4m 13s
Test on macos-latest / dev	2m 54s
	29m 29s

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