$ git clone -n https://src.fedoraproject.org/rpms/lohit-tamil-fonts.git /var/lib/mock/f39-build-1761898-41497/root/chroot_tmpdir/scmroot/lohit-tamil-fonts
Cloning into '/var/lib/mock/f39-build-1761898-41497/root/chroot_tmpdir/scmroot/lohit-tamil-fonts'...
$ git fetch origin 61b89a70e6ef2a5d88384a9e2eee802f934769a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lohit-tamil-fonts
 * [new ref]         61b89a70e6ef2a5d88384a9e2eee802f934769a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61b89a7 lowering priority of lohit-tamil-fonts