We had this problem with the gaim->pidgin change a while back as well.
i386 is trying to replace x86_64 and is clearly wrong.
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Package Arch Version Repository Size
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Installing:
wxGTK x86_64 2.8.4-3.fc7 updates 4.4 M
replacing compat-wxGTK.x86_64 2.4.2-21.fc6
wxGTK i386 2.8.4-3.fc7 updates 4.4 M
replacing compat-wxGTK.x86_64 2.4.2-21.fc6
Quick question but is this fixed in the next push ?