$ git clone -n https://src.fedoraproject.org/rpms/sdsl-lite.git /var/lib/mock/f40-build-771142-125917/root/chroot_tmpdir/scmroot/sdsl-lite
Cloning into '/var/lib/mock/f40-build-771142-125917/root/chroot_tmpdir/scmroot/sdsl-lite'...
$ git fetch origin 6bce61171aba5cb8755a29955ae6026cd235b54b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sdsl-lite
 * [new ref]         6bce61171aba5cb8755a29955ae6026cd235b54b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6bce611 Release 3.0.3