$ git clone -n https://src.fedoraproject.org/rpms/libreoffice-TexMaths.git /var/lib/mock/f40-build-769648-125732/root/chroot_tmpdir/scmroot/libreoffice-TexMaths
Cloning into '/var/lib/mock/f40-build-769648-125732/root/chroot_tmpdir/scmroot/libreoffice-TexMaths'...
$ git fetch origin 6cad671d72c0f01e15f7829569069bea5ca40559:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libreoffice-TexMaths
 * [new ref]         6cad671d72c0f01e15f7829569069bea5ca40559 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cad671 libcmis rebuild