$ git clone -n https://src.fedoraproject.org/rpms/perl-Cairo-GObject.git /var/lib/mock/f31-build-44915-26250/root/thebuilddir/tmp/scmroot/perl-Cairo-GObject
Cloning into '/var/lib/mock/f31-build-44915-26250/root/thebuilddir/tmp/scmroot/perl-Cairo-GObject'...
$ git reset --hard 5070b4fd9a2dafe90e71f9e3dbee3ac1d71f9523
HEAD is now at 5070b4f Perl 5.30 rebuild