$ git clone -n https://src.fedoraproject.org/rpms/libreoffice-TexMaths.git /var/lib/mock/f45-build-16849-491/root/chroot_tmpdir/scmroot/libreoffice-TexMaths
Cloning into '/var/lib/mock/f45-build-16849-491/root/chroot_tmpdir/scmroot/libreoffice-TexMaths'...
$ git fetch origin 7bd11a1ec01b9cc7875789f0ed666baec039e95d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libreoffice-TexMaths
 * [new ref]         7bd11a1ec01b9cc7875789f0ed666baec039e95d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bd11a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild