CKEditor / Rin Editor

[snippsat]

Is follow: Python Code: (Double-click to select all)
So Double-click will mark all,then copy it's okay.
As i have done here in Quick Reply.

for ndx in range(5):
    print(ndx)
    if ndx % 2 == 0:
        print("^^ is even!")

Mark all code yourself and paste with Ctrl+v and source mode off it's not okay.
If  paste in with Ctrl-Shift+v it's okay in both cases.
If source mode on it's also okay in both cases.

It's work okay now excepted for some corner cases,
most code we see posted now has indentation(that they forget code tag is some cases is excepted).