Git path polling ignores do not work in Pipeline jobs

Multibranch pipeline jobs seem to ignore git path polling rules when attempting to detect indexing changes and schedule builds.

More specifically:

• I am using a "Periodically if not otherwise run" build trigger
• I tested "Git polling ignores commits in certain paths" with the following:

1) Only including paths that I care about:
Included:
that-path-I-care-about/.*
Excluded:
(empty)

2) Including paths I care about and excluding a specific path:
Included:
that-path-I-care-about/.*
Excluded:
that-path-I-want-to-ignore/.*

3) Just using excluded paths:
Included:
(empty)
Excluded:
that-path-I-want-to-ignore/.*

None of them work as expected. Builds are triggered anytime a change is committed to the repo.