Copy of operation or attribute in mapping contains comesFrom

[Matthias Schoettle]

Currently (until issue #170 is not resolved) when during mapping an operation or attribute is created on the fly (by typing the requested name into the search field), the original operation/attribute is copied using EcoreUtil.copy(...).

Since the tracing information is contained in the Traceable element itself, it is copied as well. The result is therefore a copy of operation/attribute including tracing information. However, the expected result should be the copy without the tracing information.

[Matthias Schoettle]

Resolves #259: Clears the list of "comesFrom" when copying an operation or attribute from the lower-level aspect.

→ <<cset 73fdc9a63da3>>