$ git clone -n https://src.fedoraproject.org/rpms/libproxy.git /var/lib/mock/f33-build-323371-57977/root/chroot_tmpdir/scmroot/libproxy
Cloning into '/var/lib/mock/f33-build-323371-57977/root/chroot_tmpdir/scmroot/libproxy'...
$ git reset --hard a8f5153286431ddd040fb6e7330c557cff525171
HEAD is now at a8f5153 Build with mozjs68