$ git clone -n https://src.fedoraproject.org/rpms/perl-Math-BigInt-FastCalc.git /var/lib/mock/f31-build-46003-26430/root/chroot_tmpdir/scmroot/perl-Math-BigInt-FastCalc
Cloning into '/var/lib/mock/f31-build-46003-26430/root/chroot_tmpdir/scmroot/perl-Math-BigInt-FastCalc'...
$ git reset --hard bbb09c601d551b4189562518034fa2fe7855a9b6
HEAD is now at bbb09c6 Increase release to favour standalone package