$ git clone -n https://src.fedoraproject.org/rpms/jmol.git /var/lib/mock/f39-build-1626327-39269/root/chroot_tmpdir/scmroot/jmol
Cloning into '/var/lib/mock/f39-build-1626327-39269/root/chroot_tmpdir/scmroot/jmol'...
$ git fetch origin 076f0748629e2cd7529581f44ae20949c8afc7bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jmol
 * [new ref]         076f0748629e2cd7529581f44ae20949c8afc7bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 076f074 Version 16.1.41