[MDEP-726] dependency:copy finds missing versions in TRANSITIVE dependencies

**[Markus Karg](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=mkarg)** opened **[MDEP-726](https://issues.apache.org/jira/browse/MDEP-726?redirect=false)** and commented

In case someone wants to dependency:copy a transitive dependency, currently he needs to explicitly provide that artifact's version. This is a bit annoying, because each time a transitive dependency gets updated, the POM containing the copy-execution needs to get adjusted. It would be great, if version could get omitted, just like it already works with direct dependencies and managed dependencies.

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**Affects:** 3.3.0

**Remote Links:**
- [GitHub Pull Request #109
](https://github.com/apache/maven-dependency-plugin/pull/109)

Read the MDEP-726 description and the linked GitHub pull request #109 first; the payload does not name source files or tests. Confirm how dependency:copy handles versions for transitive, direct, and managed dependencies, then verify that omitting a transitive version follows the same resolution behavior without requiring POM updates.

Written by the indexing model from the issue text.