adde stof as a merger
feature #3989 adde stof as a merger (fabpot)

This PR was merged into the 2.3 branch.

Discussion
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adde stof as a merger

Commits
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5ce376e adde stof as a merger
Backporting #2952, which I committed to master instead of 2.3
plug rules for static methods
minor #3864 plug rules for static methods (cordoval)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #3864).

Discussion
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plug rules for static methods

| Q             | A                   |
| ---           | ---                 |
| Doc fix?      | yes                  |
| New docs?     | no                 |
| Applies to    | 2.3+                |
| Fixed tickets | #3855               |
| License       | CC-ASA 3.0 Unported |

 Sent using [Gush](https://github.com/cordoval/gush)

Commits
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b7e4729 plug rules for static methods