Changelog for systemtap-headers-3.2-6.3.i586.rpm :

* Fri Feb 16 2018 matzAATTsuse.com- Add Conflicts with systemtap-sdt-devel, as that one again provides the headers as well.
* Thu Feb 08 2018 matzAATTsuse.com- Created new specfile systemtap-headers.spec, so bootstrap cycles packages can use them without blowing up the cycle. [fate#324969]