$ git clone -n https://src.fedoraproject.org/rpms/libpst.git /var/lib/mock/f45-build-16804-491/root/chroot_tmpdir/scmroot/libpst
Cloning into '/var/lib/mock/f45-build-16804-491/root/chroot_tmpdir/scmroot/libpst'...
$ git fetch origin 728c9296cb14f20f98f29ad304a6ddf8d1027f02:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libpst
 * [new ref]         728c9296cb14f20f98f29ad304a6ddf8d1027f02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 728c929 Update project URL