$ git clone -n https://src.fedoraproject.org/rpms/less.git /var/lib/mock/f45-build-15696-478/root/chroot_tmpdir/scmroot/less
Cloning into '/var/lib/mock/f45-build-15696-478/root/chroot_tmpdir/scmroot/less'...
$ git fetch origin 9c17532074e13e16a39b75cc5b116228a4845126:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/less
 * [new ref]         9c17532074e13e16a39b75cc5b116228a4845126 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c17532 fix processing wrongly formated perldoc files (rhbz#2501990)