$ git clone -n https://src.fedoraproject.org/rpms/python-glymur.git /var/lib/mock/f40-build-1495852-23855/root/chroot_tmpdir/scmroot/python-glymur
Cloning into '/var/lib/mock/f40-build-1495852-23855/root/chroot_tmpdir/scmroot/python-glymur'...
$ git fetch origin 27aa9b82c3215b9d7a5f62a917e56f7cd292ff18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-glymur
 * [new ref]         27aa9b82c3215b9d7a5f62a917e56f7cd292ff18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27aa9b8 Update to 0.13.3 (close RHBZ#2295484)