plug-ins: fix incorrect values for ModelReleaseStatus and PropertyReleaseStatus.

While testing the metadata-editor I noticed that certain values for
ModelReleaseStatus and PropertyReleaseStatus were incorrectly
read back.

Apparently while copy pasting some values were forgotten to be
updated which caused incorrect values to be saved.

There probably are not many users of these metadata tags
since in all these years there hasn't been a bug report about this.

(cherry picked from commit 93f59193)