Fix: Properties are displayed incorrectly in Sequence diagrams (leakage between elements)#414
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kirchsth merged 1 commit intoplantuml-stdlib:masterfrom Feb 8, 2026
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…ge between elements) - Clear properties at the beginning of $getParticipant function to prevent property leakage between sequence diagram elements - Fixes issue plantuml-stdlib#413
kirchsth
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Feb 8, 2026
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thank you for the finding and the fast fix.
Related to properties in sequence diagrams itself:
- What was your base intention? Did you expected properties for participants too or did you reuse an existing model description and want to avoid the properties for relations too?
- What do you think, should I enable properties optional for participants/elements and relations too?
BR Helmut
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Fixes #413
Properties in Sequence diagrams were leaking between elements because the props variable was not being cleared between participants.
Changes
!$props = $getProps()call at the beginning of the$getParticipantprocedureIssue Details
When defining Containers with Properties in Sequence diagrams, those Properties were leaking into subsequent relationships (Rel) and displaying there collectively. This was caused by the props variable not being reset between element definitions.