python3.spec contains:
...
%if 0%{with_rewheel}
Patch189: 00189-add-rewheel-module.patch
%endif
...

The packaging guideline says:
"Packages MUST NOT have SourceN: or PatchN: tags which are conditionalized on architecture."
(https://fedoraproject.org/wiki/Packaging:Guidelines#Conditionalizing_Builds_for_Architecture)

Technically the current spec might not violate the guidelines (the guideline only refers to architecture-specific conditionals) but it seems wrong to me to exclude patches from the SRPM. Also it was pretty annoying for me when I rebuilt Python3 locally.

Please always include the patch file (it won't be used if "with_rewheel" is 0 but at least one could use the same RPM to rebuild). If it helps I can provide a patch (though I guess you don't need help for such a trivial change).