Disable line auto connect in freeform

[Thanzex]

While generally useful, the auto-connecting feature is sometimes not desirable and we should be able to override it.

I'd like to have parallel lines like so:

  ────────────────
  ──────────────── 

However it gets auto-connected at the ends to become like this:

 ┌────────────────┐ 
 └────────────────┘ 

Even if i select the ─ character in the freeform menu and apply it manually.

It applies to corners too, this:

          
│ │    ┌──
│ └────┤  
└──────┤  
       └──

becomes this:

          
│ │    ┌──
│ ├────┤  
└─┴────┤  
       └──

Even though i manually go into freeform and choose └ ─ instead of ┴ and ├ my input is completely disregarded and the lines are auto-connected.

This happens to arrows too:

     │
────►│
─────┤
     │

Becomes:

     │
┌───▲│
└────┤
     │

Again, even manually selecting the right arrow from the freeform menu does nothing and the arrow is changed to point upwards.