$ git clone -n https://src.fedoraproject.org/rpms/firefox.git /var/lib/mock/f33-build-548931-65295/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/f33-build-548931-65295/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard 498b7e2fa5185863ae07c62884f93a0a410c7cd0
HEAD is now at 498b7e2 Build with system nss