$ git clone -n https://src.fedoraproject.org/rpms/perl-MIME-Base64.git /var/lib/mock/f31-build-44436-26163/root/thebuilddir/tmp/scmroot/perl-MIME-Base64
Cloning into '/var/lib/mock/f31-build-44436-26163/root/thebuilddir/tmp/scmroot/perl-MIME-Base64'...
$ git reset --hard 25d1021f620c1f457e4032b5df7726c2aa0f93f3
HEAD is now at 25d1021 Increase release to favour standalone package