query part included in location match after rewrite (bug or feature?)

[aldem]

Well, this is where I am lost a bit - documentation only says "replacement
string", and from my understanding this includes possible expansion of
variables (like everywhere else), and it doesn't mention (or I couldn't
find, at least) that rewrite target is normalized URI (or that variables
could be processed differently). Probably, this is the only case where
expansion is processed differently from literal values.

On the other hand, if rewrite target expects a normalized URI, then mangling
with arguments there should not be possible at all, as there could be
mixture of normalized and escaped values in single string.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,242829,242831#msg-242831