This is another potential blink commit merge to fix some of assertion and crashes happening in Webkit.
Blink Commit - https://src.chromium.org/viewvc/blink?view=revision&revision=172967
Webkit GitHub Source - https://github.com/WebKit/WebKit/blob/5780eeea65cd07eaeb33633e80b07c8c2765d2f7/Source/WebCore/editing/CompositeEditCommand.cpp#L1265
Just wanted to raise bug this bug to merge and fix this bug.
Already done - https://github.com/WebKit/WebKit/commit/294988387f3377ae2aaca0351e838797733a503b
*** This bug has been marked as a duplicate of bug 149291 ***