Bug#800747: wesnoth-1.12: Some buttons don't respond to mouse clicks

[Ben Longbons]

Package: wesnoth-1.12
Version: 1:1.12.4-1
Severity: important

Dear Maintainer,

A handful of the UI buttons cannot be clicked (tested with multiple mice).

In particular I have noted:

* The "End Turn / End Scenario" button (action menu or ctrl-space works)
* The "OK" button in the Addons Manager (double-click or enter works)
* The "Close" button in Help/Unit Description (escape works)

This did not occur with wesnoth-1.10.

Using the keyboard shortcuts or alternative mouse actions above still works,
and the mouse works perfectly on all other buttons that I have noticed.

(I normally use the keyboard, but was demoing the game for a friend, so
this was quite embarrassing.)

There is also something funny with clicking on a unit that has
had the spacebar pressed to ignore its remaining move for the N key. It
cannot be moved unless you press space again and *then* press the N key.

-Ben

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (600, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages wesnoth-1.12 depends on:
ii  wesnoth-1.12-aoi    1:1.12.4-1
ii  wesnoth-1.12-core   1:1.12.4-1+b1
ii  wesnoth-1.12-data   1:1.12.4-1
ii  wesnoth-1.12-did    1:1.12.4-1
ii  wesnoth-1.12-dm     1:1.12.4-1
ii  wesnoth-1.12-dw     1:1.12.4-1
ii  wesnoth-1.12-ei     1:1.12.4-1
ii  wesnoth-1.12-httt   1:1.12.4-1
ii  wesnoth-1.12-l      1:1.12.4-1
ii  wesnoth-1.12-low    1:1.12.4-1
ii  wesnoth-1.12-nr     1:1.12.4-1
ii  wesnoth-1.12-sof    1:1.12.4-1
ii  wesnoth-1.12-sotbe  1:1.12.4-1
ii  wesnoth-1.12-thot   1:1.12.4-1
ii  wesnoth-1.12-trow   1:1.12.4-1
ii  wesnoth-1.12-tsg    1:1.12.4-1
ii  wesnoth-1.12-ttb    1:1.12.4-1
ii  wesnoth-1.12-utbs   1:1.12.4-1

Versions of packages wesnoth-1.12 recommends:
ii  wesnoth-1.12-music  1:1.12.4-1

wesnoth-1.12 suggests no packages.

-- no debconf information