Resolved SNAPSHOT versions are overwritten

When running release:prepare on a parent-child projet, I'm asked to resolved the SNAPSHOT version but some of my answers are ignored.

Cause is :

In this method : CheckDependencySnapshotsPhase.resolveSnapshots
Lig 367 : releaseDescriptor.setResolvedSnapshotDependencies( resolvedSnapshots );

This line overwrite the map of resolved snapshot of the releaseDescriptor :

The newly resolved informations should be added to the existing map.
It should be smthg like :

for (resolvedSnapshots ) {
if (! eleaseDescriptor.getResolvedSnapshotDependencies().contains(key))
releaseDescriptor.getResolvedSnapshotDependencies().put(resolvedSnapshots.key, resolvedSnapshots .value)
}