Substituion filter with RegEx - don't understand the results

[Pierre-de-la-Verre]

My idea for the following definition is: ignore all line beginning with "job" and all lines beginning with "input file". So I defined "job.+" as "job" as string plus "." for everything plus "+" for repeat until the end.
But it seems that both definition are depending on each other - when I activate only "job", the result is wrong. Activating bot "job" and "input file", the result is OK.
What's wrong here?

[sdottaka]

This is something that I think needs improvement, but I haven't been able to address it yet.
Substitution filters are applied per difference block instead of per difference line.
If the result of applying Substitution filters is that some lines in a difference block match but other lines do not match, the differences in that difference block are not ignored on a block-by-block basis.

A PrediffLineFilter plugin with similar functionality should give better results than the Substitutuion filters.

[Pierre-de-la-Verre]

Thanks @sdottaka for your (as usual) detailed answer.

...Substitution filters are applied per difference block instead of per difference line.

Maybe you can add this information to the referring dialogue? This is an important thing.