adjust Changeset comment when changing an open changeset

[zuse]

When i have two changesets open, changing the changeset for the upload will not adjust the comment to the comment of this changeset.

example:
changesetA with comment "changes in city A due tue bing"
changesetB with comment "changes in city B due tue local knowledge"

after an upload of data with changesetB i want to upload another bunch for changesetA. After changing the changeset to A, the comment is still "changes in city B...", so i have to adjust it.

But if i change the comment to "some other text" changing the changeset should NOT destroy this new text :-)

Thanks
Holger