$ git clone -n https://src.fedoraproject.org/rpms/perl-Nagios-Plugin-WWW-Mechanize.git /var/lib/mock/f41-build-1287176-23295/root/chroot_tmpdir/scmroot/perl-Nagios-Plugin-WWW-Mechanize
Cloning into '/var/lib/mock/f41-build-1287176-23295/root/chroot_tmpdir/scmroot/perl-Nagios-Plugin-WWW-Mechanize'...
$ git fetch origin 333830c9b785299a03c699219d681430a4642b52:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Nagios-Plugin-WWW-Mechanize
 * [new ref]         333830c9b785299a03c699219d681430a4642b52 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 333830c Eliminate use of obsolete %patchN syntax (#2283636)