$ git clone -n https://src.fedoraproject.org/rpms/perl-Getopt-Long-Descriptive.git /var/lib/mock/f40-build-2243554-53697/root/chroot_tmpdir/scmroot/perl-Getopt-Long-Descriptive
Cloning into '/var/lib/mock/f40-build-2243554-53697/root/chroot_tmpdir/scmroot/perl-Getopt-Long-Descriptive'...
$ git fetch origin bb7aa23b93639e1067c9c11471934d482792474f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Getopt-Long-Descriptive
 * [new ref]         bb7aa23b93639e1067c9c11471934d482792474f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb7aa23 Update to 0.113 (rhbz#2254783)