$ git clone -n https://src.fedoraproject.org/rpms/perl-String-Compare-ConstantTime.git /var/lib/mock/f31-build-64227-29526/root/thebuilddir/tmp/scmroot/perl-String-Compare-ConstantTime
Cloning into '/var/lib/mock/f31-build-64227-29526/root/thebuilddir/tmp/scmroot/perl-String-Compare-ConstantTime'...
$ git reset --hard 56cf5b28fdc172d7f3d845789c8ad2edd9b64c26
HEAD is now at 56cf5b2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild