$ git clone -n https://src.fedoraproject.org/rpms/perl-Log-Dispatch-Config.git /var/lib/mock/f41-build-780105-13558/root/chroot_tmpdir/scmroot/perl-Log-Dispatch-Config
Cloning into '/var/lib/mock/f41-build-780105-13558/root/chroot_tmpdir/scmroot/perl-Log-Dispatch-Config'...
$ git fetch origin ba8f22a0c967c7992c8c7392487c887e299de830:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Log-Dispatch-Config
 * [new ref]         ba8f22a0c967c7992c8c7392487c887e299de830 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba8f22a Eliminate use of obsolete %patchN syntax (#2283636)