$ git clone -n https://src.fedoraproject.org/rpms/rubygem-cairo-gobject.git /var/lib/mock/f31-build-86496-31686/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject
Cloning into '/var/lib/mock/f31-build-86496-31686/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject'...
$ git reset --hard 50f9cf3d42bc874962e7b106e3b02e48ba0a581b
HEAD is now at 50f9cf3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild