$ git clone -n https://src.fedoraproject.org/rpms/perl-Time-timegm.git /var/lib/mock/f31-build-44709-26250/root/thebuilddir/tmp/scmroot/perl-Time-timegm
Cloning into '/var/lib/mock/f31-build-44709-26250/root/thebuilddir/tmp/scmroot/perl-Time-timegm'...
$ git reset --hard da3f64c689a60492db33f1a228913c1a33f1603e
HEAD is now at da3f64c Perl 5.30 rebuild