Adding or editing a server crashes the app when primary colour is not default about revolution-irc

[Vexatos]

Turns out it only seems to occur when primary colour is changed.

[MCMrARM]

Note: This issue happens on 5.0 and 5.1 only, due to TextInputLayout.ensureBackgroundDrawableStateWorkaround

Crash:

java.lang.NullPointerException: 
  at android.support.design.widget.TextInputLayout.ensureBackgroundDrawableStateWorkaround (TextInputLayout.java:941)
  at android.support.design.widget.TextInputLayout.updateEditTextBackground (TextInputLayout.java:901)
  at android.support.design.widget.TextInputLayout.drawableStateChanged (TextInputLayout.java:1429)
  at android.view.View.refreshDrawableState (View.java:16040)
  at android.view.View.dispatchAttachedToWindow (View.java:13554)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2689)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewGroup.dispatchAttachedToWindow (ViewGroup.java:2696)
  at android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:1311)
  at android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1073)
  at android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:5903)
  at android.view.Choreographer$CallbackRecord.run (Choreographer.java:773)
  at android.view.Choreographer.doCallbacks (Choreographer.java:586)
  at android.view.Choreographer.doFrame (Choreographer.java:556)
  at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:759)
  at android.os.Handler.handleCallback (Handler.java:739)
  at android.os.Handler.dispatchMessage (Handler.java:95)
  at android.os.Looper.loop (Looper.java:135)
  at android.app.ActivityThread.main (ActivityThread.java:5254)
  at java.lang.reflect.Method.invoke (Native Method)
  at java.lang.reflect.Method.invoke (Method.java:372)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:902)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:697)