Discontinuities due to recycling of cldfbAna state across multiple ISM inputs

Basic info

• Float reference:
  • Encoder (float):
  • Decoder (float):
• Fixed point:
  • Encoder (fixed):
  • Decoder (fixed):
  • Renderer (fixed): 6ad71a3a -this is not merged yet into main, it is on the branch basop-2283-isar-post-renderer-broken-for-externally-rendered-omasa-input-and-binaural_split_coded

Bug description

Looks like the same CLDFB Analysis state is used for different ISM inputs , this leads to discontinuities.

The state is written in cldfbAnalysis_ts_fx()

The same issue is present in float

Ways to reproduce

./IVAS_rend -fs 48 -render_config ../../ivas-codec/tests/split_rendering/renderer_configs/split_renderer_config_3dofhq_768k_default.txt -i ../../scripts/testv/stvOMASA_1ISM_1MASA1TC48c_cut.wav -if ISM1MASA1 -im ../../scripts/testv/stvISM1.csv ../../scripts/testv/stvOMASA_1ISM_1MASA1TC48c.met -o ../../ivas-codec/tests/split_rendering/cut/ISM1MASA1_SPLIT_CODED_ext_cfg_split_renderer_config_3dofhq_768k_default_fr_pre_20_post_20.splt.bit -of BINAURAL_SPLIT_CODED -T ../../scripts/trajectories/rotate_euler_quaternion_30s_delayed.csv -fr 20 

./ISAR_post_rend -fs 48 -i ../../ivas-codec/tests/split_rendering/cut/ISM1MASA1_SPLIT_CODED_ext_cfg_split_renderer_config_3dofhq_768k_default_fr_pre_20_post_20.splt.bit -if BINAURAL_SPLIT_CODED -o ./ISM1MASA1_SPLIT_CODED_ext_cfg_split_renderer_config_3dofhq_768k_default_fr_pre_20_post_20.wav -T ../../scripts/trajectories/rotate_euler_quaternion_30s.csv -fr 20