$ git clone -n https://src.fedoraproject.org/rpms/gstreamer1-plugins-ugly-free.git /var/lib/mock/f31-build-108622-33857/root/chroot_tmpdir/scmroot/gstreamer1-plugins-ugly-free
Cloning into '/var/lib/mock/f31-build-108622-33857/root/chroot_tmpdir/scmroot/gstreamer1-plugins-ugly-free'...
$ git reset --hard c13a62e95aca5921fd981fdf93778e7af1ce8d9f
HEAD is now at c13a62e - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild