Firefox: incorrect button state

[Wiktor Walc]

In some situations the "Bold" button is not working as expected.

• Load replacebyclass sample
• Click in the middle of "sample text", "Bold" buton is highlighted (correct)
• Click on Source button twice to switch to source and back
• Click in the middle of "sample text", Bold button is not highlighted (wrong)
• Click on the strong element in the elements path: "Bold" button is still not active (wrong again)
• Click on the Bold button: strong element is not removed (again, wrong result

Note: it is enough to click somewhere outside of the strong element in the editing area to fix the problem (e.g. after clicking on "You" and then on "sample text", the button started working).

Regression since 3.4.

[Tobiasz Cudnik]

#7059 marked as a DUP.

[Piotrek Koszuliński]

Expired.