$ git clone -n https://src.fedoraproject.org/rpms/linbox.git /var/lib/mock/f40-build-763240-122451/root/chroot_tmpdir/scmroot/linbox
Cloning into '/var/lib/mock/f40-build-763240-122451/root/chroot_tmpdir/scmroot/linbox'...
$ git reset --hard 8b2f55a2ab3a17c9efd3ed2b4fdeb258655e1c34
HEAD is now at 8b2f55a Fix OpenCL support