Null characters in branch name?

[Rick Rankin]

Hi,

I've managed to create a branch name with null characters in it. I have no
idea how/when this happened, but I just discovered it. This is what I'm
seeing:

$ hg branches | od -a
0000000   p   y   t   h   o   n   3  sp  sp  sp  sp  sp  sp  sp  sp  sp
0000020  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp   1   0   0   3
0000040   :   4   8   4   7   2   1   a   0   9   7   1   a  nl   d   e
0000060   f   a   u   l   t  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp
0000100  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp   1   0   0   1   :   b
0000120   3   b   5   2   b   0   4   e   f   5   4  sp   (   i   n   a
0000140   c   t   i   v   e   )  nl *nul nul nul nul nul nul nul nul*  sp
0000160  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp
0000200  sp  sp  sp  sp   6   8   8   :   0   1   c   4   8   2   9   f
0000220   2   b   3   5  sp   (   i   n   a   c   t   i   v   e   )  nl
0000240   e   x   p   e   r   i   m   e   n   t   a   l  sp  sp  sp  sp
0000260  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp  sp   5   5   5
0000300   :   b   6   e   d   8   6   9   c   9   a   9   1  sp   (   i
0000320   n   a   c   t   i   v   e   )  nl

Does anyone have any idea how to fix it? The "standard" method for renaming
a branch involves updating to the branch whose name you want to change, but
that doesn't (seem to) work.

I'd appreciate any advice,

Rick
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