$ git clone -n https://src.fedoraproject.org/rpms/perl-Color-Library.git /var/lib/mock/f41-build-1115148-20211/root/chroot_tmpdir/scmroot/perl-Color-Library
Cloning into '/var/lib/mock/f41-build-1115148-20211/root/chroot_tmpdir/scmroot/perl-Color-Library'...
$ git fetch origin 34b25f457d5e924816fa16fd9537d4c2c7d9bc38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Color-Library
 * [new ref]         34b25f457d5e924816fa16fd9537d4c2c7d9bc38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34b25f4 Eliminate use of obsolete %patchN syntax (#2283636)