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
Linked issues
duplicates
Attachments
Comments

Duplicate of MC-2053. The locations of the hinges have changed somewhat, and it looks like an attempt was made to fix this, but it's still not completely fixed. The spot in the center of the lower half of the door has always been there, and is most likely intended.