🐛 Fixed error when opening editor after abandoning a new tag
🐛 Fixed error when opening editor after abandoning a new tag

no issue

- the new tag that is added to the store when opening the new tag route was not being cleaned up when leaving the new tag route
- blank tags have a name value of `undefined` which causes errors when calling `localeCompare()` on them as is done when ordering tag names for display in the tags input

TryGhost/Ghost,TryGhost/Ghost,TryGhost/Ghost