ref #7502 Show lock icon in header
ref #7502 Show boolean properties in checkboxes
fix #7660 Add icons to bulk editor for deduplication target/candidate
ref #7614 Catch negative index when getting the row object
ref #7614 Fix possible IndexOutOfBoundException for label accumulation
ref #7439 Split BulkEditorE4 in E4 part and Composite
ref #7439 Code refactoring