ST6RI-793 Transition source cannot be a feature chain #590
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As reported in OMG issue SYSML2_-222, the derivations of the
TransitionUsage::source
andtarget
properties given in the specification currently do not support the use of feature chains as the source or target of a transition. However, the derivation forTransitionUsage::target
as implemented in the Pilot Implementation does already allow the use of feature chains as transition targets. Unfortunately, the implemented derivation ofTransitionUsage::source
did not allow feature chains to be used as transition sources, which was inconsistent.This PR:
TransitionUsage::source
so that it also consistently allows feature chains, presupposing the eventual resolution of SYSML2_-222.