problem

The JS Exception "Uncaught DOMException: Failed to execute 'setEnd' on 'Range': There is no child at offset 4." happens on pasting content into the segment editor.

stack trace

Uncaught DOMException: Failed to execute 'setEnd' on 'Range': There is no child at offset 4.
at WrappedRange.rangeProto.setEnd (http://translate5.localdev/js/rangy/rangy-master/lib/rangy-core.js:2304:42)
at constructor.getPositionInfoForRange (http://translate5.localdev/modules/editor/js/app/util/Range.js?_dc=1547557550353:377:19)
at constructor.getContainerForCharacterNextToCaret (http://translate5.localdev/modules/editor/js/app/util/Range.js?_dc=1547557550353:174:35)
at constructor.getTrackchangeNodeForContentBeforeCaret (http://translate5.localdev/editor/plugins/js/TrackChanges/controller/UtilRange.js?_dc=1547557550805:220:34)
at constructor.getINSNodeForContentBeforeCaretAccordingToEvent (http://translate5.localdev/editor/plugins/js/TrackChanges/controller/UtilRange.js?_dc=1547557550805:242:34)
at constructor.handleInsert (http://translate5.localdev/editor/plugins/js/TrackChanges/controller/UtilInsertion.js?_dc=1547557550805:111:40)
at constructor.trackChangesInEditor (http://translate5.localdev/editor/plugins/js/TrackChanges/controller/Editor.js?_dc=1547557549748:552:37)
at constructor.handleKeyDown (http://translate5.localdev/editor/plugins/js/TrackChanges/controller/Editor.js?_dc=1547557549748:327:41)
at constructor.fire (http://translate5.localdev/ext-6.2.0/build/ext-all-debug.js:20731:42)
at constructor.fire (http://translate5.localdev/ext-6.2.0/build/ext-all-debug.js:34336:27)

steps to reproduce

1. Copy a text from somewhere
2. Open A segment for editing
3. Double click the segment content to select all
4. press ctrl-v to paste and overwrite the selected content with the copied one
5. The content is pasted, the selected old content is wrapped with DEL, but the new content is inserted without INS tags!