Fix ability to scroll via minimap while view locked

changelog

@@ -26,6 +26,7 @@ Version 1.13.7+dev:
    * Fixed file path being truncated on the wrong side in the File Browser.
    * Improved Hotkey category sorting interface in Preferences.
    * Improved Addon Manager and MP Staging interfaces at low resolutions.
+   * Fixed bug that allows you to use the minimap to bypass view locking
  * WML Engine:
    * Add base_income key to [store_side]
    * Fix issues with alpha animations on hidden units (#14503)

src/mouse_handler_base.cpp

@@ -223,6 +223,10 @@ bool mouse_handler_base::left_click(int x, int y, const bool /*browse*/)
 	if(tooltips::click(x,y))
 		return true;
 
+	if(gui().view_locked()) {
+		return false;
+	}
+
 	// clicked on a hex on the minimap? then initiate minimap scrolling
 	const map_location& loc = gui().minimap_location_on(x, y);
 	minimap_scrolling_ = false;