$ git clone -n https://src.fedoraproject.org/rpms/libmspub.git /var/lib/mock/f45-build-16603-488/root/chroot_tmpdir/scmroot/libmspub
Cloning into '/var/lib/mock/f45-build-16603-488/root/chroot_tmpdir/scmroot/libmspub'...
$ git fetch origin 4e536ab34e85a1560c656af2c5ca266221b92971:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmspub
 * [new ref]         4e536ab34e85a1560c656af2c5ca266221b92971 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e536ab 0.1.5