Block comment added with "Add block comment" does not confirm to PEP8

[sphh]

The block comment inserted by Edit > Add block comment (Ctrl+4) does not confirm to PEP8 style.

What steps will reproduce the problem?

1. Enable "Real-time code style analysis" in Preferences > Editor > Code Introspection/Analysis.
2. Insert a block comment either with menu item Edit > Add block comment or Ctrl+4.

What is the expected output? What do you see instead?

I would expect a block comment inserted which confirms to PEP8, such as

# =============================================================================
# 
# =============================================================================

but I get a block comment

and a PEP8 error "E265 block comment should start with '# '"

#==============================================================================
# 
#==============================================================================

Please see the missing space after the comment character.

Please provide any additional information below

When adding the missing space, one equal sign has to be removed to keep the maximum number of characters in the line constant. (Just to state the obvious.)

Versions and main components

• Spyder Version: 3.1.2
• Python Version: 3.5.2
• Operating system: Linux Mint 18.1

Dependencies

jedi >=0.8.1 : 0.9.0 (OK)
matplotlib >=1.0 : 1.5.1 (OK)
nbconvert >=4.0 : 5.1.1 (OK)
numpy >=1.7 : 1.11.0 (OK)
pandas >=0.13.1 : 0.17.1 (OK)
pep8 >=0.6 : 1.7.0 (OK)
psutil >=0.3 : 5.0.1 (OK)
pyflakes >=0.6.0 : 1.5.0 (OK)
pygments >=2.0 : 2.2.0 (OK)
pylint >=0.25 : 1.6.5 (OK)
qtconsole >=4.2.0: 4.2.1 (OK)
rope >=0.9.4 : 0.9.4-1 (OK)
sphinx >=0.6.6 : 1.5.2 (OK)
sympy >=0.7.3 : 0.7.6.1 (OK)

[nbonacchi]

Yup, its a very annoying bug.
As far as I can tell It's always been there.

EDIT:
Which reminded me of this bug #4075 that I just submitted.

[ccordoba12]

Thanks for reporting. This is a duplicate of issue #1785.