Odd door texture issue - Possible bug?

The door texture seems off, and with mis-placed textures, I'm not sure if this is a bug/issue or not, I freshly installed minecraft and noticed this, it is the default pack. No changes made at all to anything.

• *The bug also goes all the way back to 1.4.7, that is as far back as I checked.

• Door Bug1.png
  In the highlighted red "circles" there is the odd apparent two hinges, this may be intended, though it looks off

• DoorBug2.png
  The red squares also showing the weird hinges. Blue rectangle, a seemingly blended and/or skewed texture, there is basically no definition to the texture. This may be intended, but I do not know.

• Other screenshots
  Odd texture-ing on all sides of the door