$ git clone -n https://src.fedoraproject.org/rpms/root.git /var/lib/mock/f31-build-108735-33868/root/chroot_tmpdir/scmroot/root
Cloning into '/var/lib/mock/f31-build-108735-33868/root/chroot_tmpdir/scmroot/root'...
$ git reset --hard 90ad7be9df61eabfd0cdf80f86cff9b113febc38
HEAD is now at 90ad7be Rebuild for g++ 9.2