$ git clone -n https://src.fedoraproject.org/rpms/libotf.git /var/lib/mock/f40-build-2228065-53057/root/chroot_tmpdir/scmroot/libotf
Cloning into '/var/lib/mock/f40-build-2228065-53057/root/chroot_tmpdir/scmroot/libotf'...
$ git fetch origin 820314c6b5a3446d868ec6e21381517100845ef9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libotf
 * [new ref]         820314c6b5a3446d868ec6e21381517100845ef9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 820314c Fix flatpak build