"HTTP Error 500: Internal Server Error" on "hg clone http://hg.openjdk.java.net/jmc/jmc/"

[Gary Morrison]

Curious:

           hg clone http://hg.openjdk.java.net/jmc/jmc/

was working earlier, but now I'm getting a 500:

           ubuntu at tx2inst-c143:~$ hg clone http://hg.openjdk.java.net/jmc/jmc/
           destination directory: jmc
           abort: HTTP Error 500: Internal Server Error
           ubuntu at tx2inst-c143:~$

Is it just me, or is anybody else also seeing this too?  I've tried from several machines here.
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