$ git clone -n https://src.fedoraproject.org/rpms/libspectre.git /var/lib/mock/f33-build-201501-48079/root/chroot_tmpdir/scmroot/libspectre
Cloning into '/var/lib/mock/f33-build-201501-48079/root/chroot_tmpdir/scmroot/libspectre'...
$ git reset --hard facb3bf5573eb25a101f18c2761a1027c7d00519
HEAD is now at facb3bf Update to 0.2.9