Repro Steps:

1) Create a Page
2) Introduce a 512x256 Button to the Page
3) Using the Path Tool (P), draw any single enclosed shape overlapping the Button placed in Step 2).

4) Select the Path only, right-click on it, and in its context menu, navigate to 'Path'.
Observe how the Boolean operations are available for use, but produce no effect when selected.

5) Select the Button only, right-click on it, and in its context menu, navigate to 'Path'.
Observe how the Boolean operations are available for use, but produce no effect when selected.

6) Holding [Ctrl], multi-select both the Path, and the Button.
7) With both the Button and the Path selected, right-click on either one, and in its context menu, navigate to 'Path'. then any of the Boolean operations.
Observe how no Boolean operation takes effect.

Expected Results: Boolean Operation context menu options are disabled in contexts in which they cannot be applied.