* list/progmodes/python.el (python-indent-post-self-insert-function):
Use markers instead of positions when reindenting statement(s) after
inserting electric colon to avoid reindenting too many
statements (bug#22663).
* test/lisp/progmodes/python-tests.el (python-indent-electric-colon-2):
Improve test case to also verify the fix of bug#22663.
Copyright-paperwork-exempt: yes
a3c79d44cc