$ git clone -n https://src.fedoraproject.org/rpms/perl-App-a2p.git /var/lib/mock/f41-build-787158-13594/root/chroot_tmpdir/scmroot/perl-App-a2p
Cloning into '/var/lib/mock/f41-build-787158-13594/root/chroot_tmpdir/scmroot/perl-App-a2p'...
$ git fetch origin b03b14a2e5f262f2b2555c809e35f468a9284e32:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-App-a2p
 * [new ref]         b03b14a2e5f262f2b2555c809e35f468a9284e32 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b03b14a Eliminate use of obsolete %patchN syntax (#2283636)