$ git clone -n https://src.fedoraproject.org/rpms/perl-Device-SerialPort.git /var/lib/mock/f31-build-44512-26237/root/thebuilddir/tmp/scmroot/perl-Device-SerialPort
Cloning into '/var/lib/mock/f31-build-44512-26237/root/thebuilddir/tmp/scmroot/perl-Device-SerialPort'...
$ git reset --hard a27d3e523bf5009d57bcd5c8fe004177a0e3c405
HEAD is now at a27d3e5 Perl 5.30 rebuild