-k does not work in -a 1 -S

[PenguinKeeper7]

Describe the bug
-k single rules don't work using -a 1 -S. Without -S, Hashcat is functional as expected

Without -S:

> ./hashcat --stdout -a 1 xwordlist.txt xwordlist.txt -j u
HELLOhello

> ./hashcat --stdout -a 1 xwordlist.txt xwordlist.txt -k u
helloHELLO

With -S:

> ./hashcat --stdout -a 1 xwordlist.txt xwordlist.txt -j u -S
HELLOhello

> ./hashcat --stdout -a 1 xwordlist.txt xwordlist.txt -k u -S
hellohello      <------ Should be helloHELLO

Expected behavior
In the final command, it should be helloHELLO as the right side of "hello" should be uppercased.

[Chick3nman]

This is very similar to a bug I reported, #3211, that turned out to be functionality that simply was never added/completed. The PR that fixed it, #3237, seems like it should be relevant for fixing this too, assuming its a similar issue. I believe the reason this may have been missed was because the rule processor(s) that were involved in that issue were the pure and optimized GPU rule processors and not the host side rule processor.