Fix typo: `active` -> `activate`
Implement default omit filter
Implement default omit correctly
Implement omit for module args, also add tests for it
Undo changes to filter module
add new test case
Additional fixes for the new omit parameter variable
Fixing up serialize_args utility function
Use split_args directly to check for omitted params
Adding docs for default+omit
Merge branch 'default-omit-updated' into devel
Update CHANGELOG.md
Merge pull request #8761 from mwarkentin/patch-1

Fix typo: `active` -> `activate`