1192475 - Part of keywords shouldn't be visible when you're editing them on about:preferences#search

Status: RESOLVED DUPLICATE of bug 1113581

(Firefox :: Settings UI, defect)

Description

[arni2033]

Attachment: Part of keywords may still be visible when you're editing them on aboutpreferences#search.png

STR:   (Win7, Nightly 42.0a1 (2015-08-07))
1. Open about:preferences#search
2. Edit keyword for any search engine by doubleclicking on it
3. Part of keywords may still be visible, especially for keywords starting with "/", "x" or "y"

RESULT:
I see some pixels from the selected blue row. I don't expect this.

NOTE:
You may not reproduce the 1st time. Try to reduce the window's width a bit, then try again. Don't confuse this behavior with bug 1192474. This reult is unstable but I can reproduce it in 50% cases.
I'll be available until ~15 August (in case you'll need a screencast)