[Webkit-unassigned] [Bug 97763] REGRESSION(r129186): Pressing enter at the end of a line deletes the line

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=97763





--- Comment #6 from Levi Weintraub <leviw at chromium.org>  2012-09-27 14:20:42 PST ---
Okay... I've got the root cause. It's an optimization in RenderText.

RenderText::setTextWithOffset gets called by editing code to replace the line you were on when you hit enter with a copy of the same text. We dirty the lines in setTextWithOffset, then call RenderText::setText, which should mark us as needing layout. Instead, we check to see if the new text and the current text are equal, and if they are, we return early to avoid layout and pref width recalc.

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