$ git clone -n https://src.fedoraproject.org/rpms/perl-ExtUtils-Manifest.git /var/lib/mock/f45-build-23423-597/root/chroot_tmpdir/scmroot/perl-ExtUtils-Manifest
Cloning into '/var/lib/mock/f45-build-23423-597/root/chroot_tmpdir/scmroot/perl-ExtUtils-Manifest'...
$ git fetch origin cfc5469ce5af86cc602ccd065d961bf8f6b84ace:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-ExtUtils-Manifest
 * [new ref]         cfc5469ce5af86cc602ccd065d961bf8f6b84ace -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfc5469 Increase release to favour standalone package