At most one flow/factor states calculation for one contingency in DC sensitivity analysis

[p-arvy]

Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines
• [x] Tests for the changes have been added (for bug fixes / features)
• [x] Docs have been added / updated (for bug fixes / features)

Does this PR already have an issue describing the problem?

No.

What kind of change does this PR introduce?

What is the current behavior?

Multiple modified flow states calculations can be performed for a given contigency in DC sensitivity analysis, e.g. when the connectivity changed and a pst is lost. Same for factor states.

What is the new behavior (if this is a feature change)? At most one flow/factor states calculation is performed for each contingency.

Does this PR introduce a breaking change or deprecate an API?

• [ ] Yes
• [ ] No

If yes, please check if the following requirements are fulfilled

• [ ] The Breaking Change or Deprecated label has been added
• [ ] The migration steps are described in the following section

What changes might users need to make in their application due to this PR? (migration steps)

Other information:

[sonarcloud[bot]]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud