Castle screen shows no water even though a shipyard can be constructed.

[felix-schneider]

Preliminary checks

• I've checked that there aren't other open issues on the same topic.
• I've checked that this issue is reproducible on the latest snapshot build.

Platform

Windows

Describe the bug

In the Wizard's Isle campaign scenario 2, "The Eternal Scrolls", the northern Wizard castle can build a shipyard, but the castle screen does not show the water patch in the bottom left until it is built:

Save file

BUG.zip

Additional info

No response

[zenseii]

The Wizard castle did not have a bay originally. Please see this: #7431