$ git clone -n https://src.fedoraproject.org/rpms/qrencode.git /var/lib/mock/f31-build-72015-30800/root/chroot_tmpdir/scmroot/qrencode
Cloning into '/var/lib/mock/f31-build-72015-30800/root/chroot_tmpdir/scmroot/qrencode'...
$ git reset --hard 15248b7702882db19f10998f7c85c5de9c8c4bcd
HEAD is now at 15248b7 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild