[BUG][Forum] Formatting-Bug: List-intending

Expectation:

• The order of items in a list with multiple indent-levels is not changed during "posting"

Actual:

• the order of items in a list with multiple indent-levels is changed during posting / "parsing"

Example:

(the "text" represents the order in which it was written)

1. 1
2. 2
3. 3
   1. 3.a
   2. 3.b
   3. 3.c
4. 4
   1. 4.a
   2. 4.b
   3. 4.c
   4. 4.d
5. 5
6. 6
   1. 6.a
   2. 6.b
   3. 6.c
   4. 6.d
   5. 6.e
      1. 6.e.i
      2. 6.e.ii
   6. 6.f
      1. 7.f.i
      2. 7.f.ii
      3. 7.f.iii