$ git clone -n https://src.fedoraproject.org/rpms/rubygem-glib2.git /var/lib/mock/f31-build-52032-27597/root/chroot_tmpdir/scmroot/rubygem-glib2
Cloning into '/var/lib/mock/f31-build-52032-27597/root/chroot_tmpdir/scmroot/rubygem-glib2'...
$ git reset --hard ed994ab8e84c271a085819d7b56612bbc2c8e8f3
HEAD is now at ed994ab 3.3.6