BASOP Assertion in StereoDmxEvs encoding

Basic info

• Encoder (fixed): 86dffae6

Bug description

In the complexity pipeline, a BASOP assertion is hit in the StereoDmxEvs encoder:

Assertion failed: (0), function L_add, file basop32.c, line 1661.

Ways to reproduce

IVAS_cod_fx -stereo_dmx_evs -dtx -max_band wb 9600 16 ltv16_STEREO.wav bit