$ git clone -n https://src.fedoraproject.org/rpms/openmsx.git /var/lib/mock/f39-build-1539406-36432/root/chroot_tmpdir/scmroot/openmsx
Cloning into '/var/lib/mock/f39-build-1539406-36432/root/chroot_tmpdir/scmroot/openmsx'...
$ git fetch origin d492791876688477da1a106ba53725d5735336cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openmsx
 * [new ref]         d492791876688477da1a106ba53725d5735336cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d492791 New upstream version 19.1