Template viewer dialog beats batch train mode

[elexis]

As reported by BateHoomers in the lobby today, the input.js UI state becomes broken when performing the following steps:

1. Select an entity with a production queue.
2. Press Shift to start batch train mode and keep holding.
3. Right click on the production queue item to open the unit info dialog
4. Close the dialog with a left click on the Close button

Observed result: Until enabling batch train mode again by pressing shift again and releasing it, the production queue number remains displayed, and the entity selection cannot be cleared or changed.

Expected result: Either batch train mode could disable the template viewer dialog button, or all started selection pane laction (batchtrain) are committed or cancelled prior to opening the dialog.