NRPN fails to send value 0 for CC 38

[johanwk]

(Motivated by the Elektron Analog Four, where various parameters require NRPN LSB = 0.)

Seems Tidal won't send value 0 for CC 38. The midi monitor (on a Mac) shows that the following resends the last occurrence of CC 6 instead of CC 38 with value 0.

once $ ccn 38 # ccv 0 # s "midi"

For example, this goes wrong, with nrpnv value 4096: once $ nrpnn 128 # nrpnv 4096 # s "midi" # midichan 8, returning

Channel	Value
9	99	1
9	98	0
9	6	32
9	6	32

while values that don't imply value 0 for CC 38 are fine; here with 4097: once $ nrpnn 128 # nrpnv 4097 # s "midi" # midichan 8 returns

Channel	Value
9	99	1
9	98	0
9	6	32
9	6	32
9	38	1

(but note that CC 6 is sent twice).

Originally posted by @johanwk in #154 (comment)