Very frequently when I attempt to tag multiple images at once with the same tag, gThumb (version 2.12.2) simply crashes. This happens both when I select multiple images, right click and go to comment to tag them, or if I right click and go to the tag option directly. Sometimes it lets me tag a few at once, but sometimes it will crash, over and over, even if I try to tag two images, making the process of tagging a large batch practically impossible. It does the same thing on two different computers, both running Ubuntu Maverick 10.10.
When I run gThumb from the terminal, it outputs this when it crashes:

gthumb: tiffcomposite.cpp:1141: virtual uint32_t Exiv2::Internal::TiffDirectory::doWrite(Exiv2::Internal::IoWrapper&, Exiv2::ByteOrder, int32_t, uint32_t, uint32_t, uint32_t&): Assertion `sv == d' failed.
Aborted


Thanks!