$ git clone -n https://src.fedoraproject.org/rpms/gmp-ecm.git /var/lib/mock/f33-build-292075-54814/root/chroot_tmpdir/scmroot/gmp-ecm
Cloning into '/var/lib/mock/f33-build-292075-54814/root/chroot_tmpdir/scmroot/gmp-ecm'...
$ git reset --hard a3383b5787913b16486ce7814d574a7b5e71f9b3
HEAD is now at a3383b5 - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild