Which version of Safari are you using?

I'm on Safari 2.0.2 (416.13), and this is happening to me also. It also happens when I don't use the keyboard shortcut, but click on the pencil icon to edit the name.

On 2.0.3 (417.8) here - this is the latest version that comes with 10.4.4. Same problem occured prior to software update. I will attempt to replicate the bug and note down exact instances.

Thanks, we've been able to reproduce this now and are working to fix this -- it's actually a known bug within the Safari browser that we need to workaround. I'll post here when fixed.

This has now been fixed.