December 17, 2014 Patch (Test)

{{Patch layout
 * source = http://dev.dota2.com/showthread.php?t=152091
 * source2 = http://dev.dota2.com/showthread.php?t=152134
 * source3 = http://dev.dota2.com/showthread.php?t=152140
 * source-title = Update 4
 * source2-title = Update 5
 * source3-title = Update 6
 * before = December 16, 2014 Patch (Test)
 * after = February 11, 2015 Patch (Test)
 * notes =

Update 4

 * Fixed 's giving magic stick charges
 * Fixed not turning day to night properly
 * Fixed an old minor bug with how you lose life at the end of
 * Fixed various tooltips
 * Fixed not returning allies if they become spell immune
 * now kills the ed unit under two conditions:
 * it is an enemy
 * it is an allied unit that you took control over
 * Fixed abilities of already-controlled units being disabled when ed.
 * Fixed ability slot count being wrong when ing heroes.
 * / abilities are now only added to units that are not already controlled by an ally

Update 5

 * Fixed not selecting Spell Immune allies when targeting the ground
 * Fixed unselectable units like not getting their vision reduced by
 * Fixed  not working properly
 * Fixed and old bug with damage source on, splash, and  dps
 * Fixed various tooltips
 * Fixed duration to take 1.3 seconds.
 * Fixed Detonate hotkey
 * Fixed not being able to take control of an enemy-controlled unit.
 * Fixed gaining control of an allied unit after not taking control of it and consuming your way out of it.

Update 6
}}
 * Fixed various related bugs