$ git clone -n https://src.fedoraproject.org/rpms/rubygem-cairo.git /var/lib/mock/f33-build-137580-42043/root/chroot_tmpdir/scmroot/rubygem-cairo
Cloning into '/var/lib/mock/f33-build-137580-42043/root/chroot_tmpdir/scmroot/rubygem-cairo'...
$ git reset --hard cad25baad3b0a2287c40bfb9dc7d0b2d65043228
HEAD is now at cad25ba 1.16.5