opening and closing projects shows too many (wrong) options when opening/saving schema

[gostay]

• launch cdk
• open a project with a previously-saved uniquely named control schema (e.g. "robot schema")
• close that project
• open a different project with a previously-saved uniquely named control schema (e.g. "monster schema")
• choose Control Schema -> Open command (or, similarly, Control Schema -> Save)

Note that schemas from both projects are listed, even though you closed the other project.

This is unexpected. Indeed, if you close the CDK entirely, relaunch it, and open just the second project, only one schema is listed on open/save.

If there's some intentional plan to let me open schemas from other projects this way, then I love that idea, but it needs work. In fact, I discovered this bug while copying/pasting a schema from another project. :) But as things stand now, I expect this is a bug, right?

I didn't try taking this any farther (e.g. opening the cross-project schema or saving to the other project's schema), 'cause I didn't want to mess up my projects. Bad things might happen there, too.