doncr 241bb0e029 Added error message for plain/polite issue.
The issue is that all tests involve either plain or polite and so unselecting
both will mean that all tests are unselected.

This patch adds error text that appears when both are unselected.
2021-02-16 14:38:00 +00:00
2016-11-26 16:46:15 +00:00
2021-01-02 17:03:28 +00:00
Description
Japanese conjugation drill
303 KiB
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