ATTR_BLINK is an attribute for a Glyph and will not be set in term.mode.
@ -3606,8 +3606,8 @@ run(void) {
ttyread();
if(blinktimeout) {
blinkset = tattrset(ATTR_BLINK);
if(!blinkset && term.mode & ATTR_BLINK)
term.mode &= ~(MODE_BLINK);
if(!blinkset)
MODBIT(term.mode, 0, MODE_BLINK);
}