Issue Summary

When editing issue types in context configuration of custom fields, the issue types disappear if they are moved from added to available column.

Steps to Reproduce

1. Settings > Issues > Custom fields > Configure context
2. Edit configuration > Move few issue types to selected issue types
3. Save
4. Edit configuration > Move issues types back to available
5. Search for issues types in available column

Expected Results

All issue types matching search query show up in the results

Actual Results

Recently moved issue types are not visible.

When you removed search query, the moved issue types are removed permanently from the UI

Workaround

Save changes before searching