Reproduction steps: - In the Browser side sidebar, rename a tag to an invalid name such as a name containing a space. - An error pops up that says "replacement name cannot contain a space". - After dismissing the error, the Browser shows the new invalid name for the tag. - Trying to rename the tag gives an error saying "You can't rename a tag that has no notes." - Closing and re-opening the browser shows the old name for the tag, implying that it's a visual bug, the underlying name was never changed.