Assert in reduce_metadata_further_fx for MASA selection test input

Basic info

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

Bug description

Using a MASA format file generated from selection test material causes the BASOP encoder to assert in frame 153. The assert is

Assertion failed: (0), function L_shl, file basop32.c, line 2580

and the stack trace is here

Ways to reproduce

The input files are in

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1169

and the command line for replication is

IVAS_cod -masa 2 BASOP_Selection_MUSHRA-7ad_s14.met -max_band fb 32000 48 BASOP_Selection_MUSHRA-7ad_s14.wav test_1484.bs