Given that the 'is_tx = 0' can't be moved in the entire handler as a consequence of a possible race in between the delay in switching to STATE_RX_AACK_ON and a new interrupt, we introduce an intermediate 'was_tx' boolean only for this purpose. There is absolutely no Fixes tag making use https://wordpressandplugins94726.bluxeblog.com/60752105/an-unbiased-view-of-wordpress-plugin