A text area marks correct words as spelling errors

Binary package hint: firefox

Suppose a page, like at <http://bugzilla.gnome.org/simple-bug-guide.cgi>, the last step, shows several text areas.

Steps to reproduce:
1. Switch to Polish dictionary, or any other non-English.
2. Enter some English text in text area #1, e.g. "An icon on your desktop that you can use to open a file". Firefox correctly marks a few words as spelling errors.
3. Enter the same text in text area #2. Firefox correctly marks a few words as syntax errors.
4. Go to text area #1 and switch to English. Firefox removes the error marks in text area #1 but not in text area #2.
5. Go to text area #2 and realize that you cannot switch to English because the selected dictionary is English already.

There are four viable alternatives:
A. Validate text in all text areas upon a dictionary switch.
B. (Preferred). Make the selected dictionary local to the text area.
C. (A bit weird). Allow switching from English to English in order to recheck. (The current workaround is to disable and enable spell checking).
D. Add a "Recheck" context-dependent command.

ProblemType: Bug
Architecture: amd64
Date: Wed Jan 30 20:16:38 2008
DistroRelease: Ubuntu 7.10
NonfreeKernelModules: nvidia
Package: firefox 2.0.0.11+2nobinonly-0ubuntu0.7.10
PackageArchitecture: amd64
SourcePackage: firefox
Uname: Linux a1dmin.vola.spe.com.pl 2.6.22-14-generic #1 SMP Tue Dec 18 05:28:27 UTC 2007 x86_64 GNU/Linux