init `target_formatter` not only typed

[Borda]

What does this PR do?

Fixes #1543

Before submitting

• [x] Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
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• [x] Did you make sure your PR does only one thing, instead of bundling different changes together?
• [ ] Did you make sure to update the documentation with your changes?
• [ ] Did you write any new necessary tests? [not needed for typos/docs]
• [ ] Did you verify new and existing tests pass locally with your changes?
• [ ] If you made a notable change (that affects users), did you update the CHANGELOG?

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[codecov[bot]]

Codecov Report

Merging #1665 (0c799dd) into master (269e852) will decrease coverage by 2%. Report is 18 commits behind head on master. The diff coverage is 100%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1665 +/- ## ======================================= - Coverage 86% 84% -2% ======================================= Files 291 291 Lines 12852 12852 ======================================= - Hits 10989 10766 -223 - Misses 1863 2086 +223 ```