$ git clone -n https://src.fedoraproject.org/rpms/perl-Archive-RPM.git /var/lib/mock/f41-build-787146-13594/root/chroot_tmpdir/scmroot/perl-Archive-RPM
Cloning into '/var/lib/mock/f41-build-787146-13594/root/chroot_tmpdir/scmroot/perl-Archive-RPM'...
$ git fetch origin 1f59d498926ce6466c57307733aead89982fea52:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Archive-RPM
 * [new ref]         1f59d498926ce6466c57307733aead89982fea52 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f59d49 Eliminate use of obsolete %patchN syntax (#2283636)