tree 3d0fb8a6a475c69bab1971030fe52142523f54bb
parent 1f3da01c2877cf9d472517c38df3c72f9be02e16
author Roman Arutyunyan <arut@nginx.com> 1544522940 +0300
committer Roman Arutyunyan <arut@nginx.com> 1544522940 +0300

Copy regex unnamed captures to cloned subrequests.

Previously, unnamed regex captures matched in the parent request, were not
available in a cloned subrequest.  Now 3 fields related to unnamed captures
are copied to a cloned subrequest: r->ncaptures, r->captures and
r->captures_data.  Since r->captures cannot be changed by either request after
creating a clone, a new flag r->realloc_captures is introduced to force
reallocation of r->captures.

The issue was reported as a proxy_cache_background_update misbehavior in
http://mailman.nginx.org/pipermail/nginx/2018-December/057251.html.