The `WebGLRenderer.updateCanvasTexture` method will now set `gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL` to true, which should stop issues where you update a Text Game Object, having added a Render Texture or Spine Game Object to the Scene after it, which switches the PMA setting. Fix #5064
The `WebGLRenderer.updateCanvasTexture` method will now set `gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL` to true, which should stop issues where you update a Text Game Object, having added a Render Texture or Spine Game Object to the Scene after it, which switches the PMA setting. Fix #5064

photonstorm/phaser,BeanSeed/phaser,spayton/phaser,BeanSeed/phaser,spayton/phaser,photonstorm/phaser