$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Install-Repository.git /var/lib/mock/f41-build-1194930-22267/root/chroot_tmpdir/scmroot/perl-Module-Install-Repository
Cloning into '/var/lib/mock/f41-build-1194930-22267/root/chroot_tmpdir/scmroot/perl-Module-Install-Repository'...
$ git fetch origin a9979b46265dfb605caf6a9316035fdbf33d4ab1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Install-Repository
 * [new ref]         a9979b46265dfb605caf6a9316035fdbf33d4ab1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9979b4 Eliminate use of obsolete %patchN syntax (#2283636)