cc doesn't auto-indent blank lines within a block

[kizycat]

Test case: (* represents cursor position)

def a():
    b = 42
    c = "asdf"
*
    # random stuff

Pressing cc with indentexpr=cindent(v:lnum) gives the expected result:

def a():
    b = 42
    c = "asdf"
    *
    # random stuff

With indentexpr=GetPythonPEPIndent(v:lnum) however, the cursor remains on column 1:

def a():
    b = 42
    c = "asdf"
*
    # random stuff

[aldanor]

Also, in this example:

def a():
    b = 42
    c = "asdf"
*
    # random stuff

Pressing <CR> in insert mode results in

def a():
    b = 42
    c = "asdf"

*
    # random stuff

which is quite unfortunate :(

[aldanor]

This also extrapolates to the nested case:

def a():
    def b():
        'bar'
*
        'baz'

Pressing <CR> in insert mode:

def a():
    def b():
        'bar'

*
        'baz'

🐼