filtering on a gene mutation class breaks

[karishma-gangwani]

in termdbtest select 'tp53' and deselect WT and not tested and click apply.

see server side error.

TypeError: Cannot read properties of undefined (reading 'parent_id')
at getParentType (file:///Users/kgangwan/dev/sjpp/proteinpaint/shared/utils/src/terms.js:173:15)
at getFilterCTEs (file:///Users/kgangwan/dev/sjpp/proteinpaint/server/src/termdb.filter.js:45:22)
at getFilterCTEs (file:///Users/kgangwan/dev/sjpp/proteinpaint/server/src/termdb.filter.js:52:14)
at Module.get_samplecount (file:///Users/kgangwan/dev/sjpp/proteinpaint/server/src/termdb.sql.js:104:23)
at file:///Users/kgangwan/dev/sjpp/proteinpaint/server/src/termdb.js:52:58
at Layer.handle [as handle_request] (/Users/kgangwan/dev/sjpp/node_modules/express/lib/router/layer.js:95:5)
at next (/Users/kgangwan/dev/sjpp/node_modules/express/lib/router/route.js:144:13)
at next (/Users/kgangwan/dev/sjpp/node_modules/express/lib/router/route.js:140:7)
at next (/Users/kgangwan/dev/sjpp/node_modules/express/lib/router/route.js:140:7)
at next (/Users/kgangwan/dev/sjpp/node_modules/express/lib/router/route.js:140:7)

[gavrielm]

I added @congyu-lu to this as I believe he is more familiar with this feature than I am