[PATCH] tag: abort when trying to remove nonexistent tags

[Brendan Cully]

On Wednesday, 20 June 2007 at 20:46, TK Soh wrote:
> On 6/20/07, Brendan Cully <brendan at kublai.com> wrote:
> > On Friday, 15 June 2007 at 14:52, TK Soh wrote:
> > > Hg keep adding changesets to remove non-existent tags. Attached is the fix.
> >
> > Pushed to crew, thanks.
> >
> > (a test case would have been nice, and your emailer used the wrong mime-type)
> 
> I'll look into the test later. Emailer is Gmail, which isn't smart
> enough to know that .diff is a text file. I'll try to remember to use
> .txt next time :)

I've already added a test :)