Decoder crash SBA 1

Basic info

• Commit SHA: main (e.g 0ede305f)
• Platform: Windows

Bug description

Decoder crashes when decoding FOA with STEREO OutputConf. The same error is observed with FOA OutputConf too. Might be related to #736 (closed).

IVAS_cod.exe -sba 1 48000 48 ltv48_FOA.wav bit

IVAS_dec.exe STEREO 48 bit out.wav

------ Running the decoder ------

Frames processed:       Assertion failed: st->next_bit_pos - start_bit_pos + rest_bits <= 0, file y:\mul\ivas_selection_release\ivas-codec\lib_dec\accontextmapping_dec.c, line 638

ltv48_FOA.wav -> https://forge.3gpp.org/rep/ivas-codec-pc/ivas-pc-testfiles/-/blob/longer-testv-on-runners/ltv48_FOA.wav