Assertion in reduce_metadata_further_fx for OMASA LTV input

Basic info

• Fixed point:
  • Encoder (fixed): 909f10c3

Bug description

Using the OMASA LTV input for BASOP encoder, there is an assertion in frame 4543. The assert is

Assertion failed: (0), function L_add, file basop32.c, line 1784.

and the stack trace is here

Ways to reproduce

Use the LTV input files and command line like this

IVAS_cod -ism_masa 4  2  ltv48_OMASA_4ISM_2TC_ISM1.csv ltv48_OMASA_4ISM_2TC_ISM2.csv ltv48_OMASA_4ISM_2TC_ISM3.csv ltv48_OMASA_4ISM_2TC_ISM4.csv ltv48_OMASA_4ISM_2TC.met -max_band swb  128000 16 ltv16_OMASA_4ISM_2TC.wav test_0343.bs