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2f3e3bbad9
The only state information that the CCID-3 receiver keeps is whether initial feedback has been sent or not. Further, this overlaps with use of feedback: * state == TFRC_RSTATE_NO_DATA as long as no feedback has been sent; * state == TFRC_RSTATE_DATA as soon as the first feedback has been sent. This patch reduces the duplication, by memorising the type of the last feedback. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>