akasma74 fc44b3a2c3
add note on is_state_attr (#12169)
* add note on is_state_attr

Added a note about is_state_attr when attribute's value is None.
Based on https://community.home-assistant.io/t/can-someone-please-explain/128041 and https://community.home-assistant.io/t/is-state-attr-with-none-argument-to-test/173723

* ✏️ Tweak

Co-authored-by: Franck Nijhof <frenck@frenck.nl>
2020-02-27 13:36:43 +01:00
..
2020-02-13 19:39:47 +01:00
2019-07-11 14:35:08 -07:00
2020-02-13 19:39:47 +01:00
2019-07-11 14:35:08 -07:00