$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-GPG.git /var/lib/mock/f41-build-1115194-20214/root/chroot_tmpdir/scmroot/perl-Crypt-GPG
Cloning into '/var/lib/mock/f41-build-1115194-20214/root/chroot_tmpdir/scmroot/perl-Crypt-GPG'...
$ git fetch origin 85ae0b8438f0b8989248708e8540eca0153b4d22:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-GPG
 * [new ref]         85ae0b8438f0b8989248708e8540eca0153b4d22 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85ae0b8 Eliminate use of obsolete %patchN syntax (#2283636)