$ git clone -n https://src.fedoraproject.org/rpms/perl-Filesys-Df.git /var/lib/mock/f31-build-45605-26368/root/thebuilddir/tmp/scmroot/perl-Filesys-Df
Cloning into '/var/lib/mock/f31-build-45605-26368/root/thebuilddir/tmp/scmroot/perl-Filesys-Df'...
$ git reset --hard 49aebcb5ca7a26a0d658966e451f163bd89fa5ec
HEAD is now at 49aebcb Perl 5.30 rebuild