$ git clone -n https://src.fedoraproject.org/rpms/perl-POE-Component-Server-HTTP.git /var/lib/mock/f41-build-1108004-20090/root/chroot_tmpdir/scmroot/perl-POE-Component-Server-HTTP
Cloning into '/var/lib/mock/f41-build-1108004-20090/root/chroot_tmpdir/scmroot/perl-POE-Component-Server-HTTP'...
$ git fetch origin 6b5a389389bc4f2ba1bfdea53f01a39894ec76c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-POE-Component-Server-HTTP
 * [new ref]         6b5a389389bc4f2ba1bfdea53f01a39894ec76c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b5a389 Eliminate use of obsolete %patchN syntax (#2283636)