[opensuse-packaging] Patches naming (include source version?)

Hello. What is the rule for naming patches? I mean including or not a version of a source in the name. Following https://en.opensuse.org/openSUSE:Packaging_Patches_guidelines#Patch_naming "Do NOT use %{version} macro in Patch: line, specify the version by hand." A patch will look like foo-1.2.3-fix_something.patch. Is it still valid? I see a lot of patches without a version in their names. What is the right way? I prefer to have a version in a patch name to know that foo-1.2.4-fix_something.patch is applied for "foo = 1.2.4" and, possibly, for "foo > 1.2.4". And it isn't applied for "foo < 1.2.4". -- WBR Kyrill