BASOP encoder OSBA: artifacts in discrete object channel
# Basic info
<!--- Add commit SHA used to reproduce -->
- Float reference:
- Encoder (float): f7a0e207 (ivas-float-update)
- Decoder (float): f7a0e207 (ivas-float-update)
- Fixed point:
- Encoder (fixed): 0ca1f14f (main)
# Bug description
In ISM3SBA3, there a audible metallic artifacts on one of the discrete object channels. This is particularly pronounces in the "shakers" object. As the object channels are simply coded through MCT in this mode, this could also be an MCT -related issue.
# Ways to reproduce
Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-1239
<!-- Commandline or script -->
```bash
./IVAS_cod[_fx] -ism_sba 3 3 0.csv 1.csv 2.csv -max_band SWB 256000 48 10dB.wav bit[_fx]
./IVAS_dec EXT 48 bit[_fx] dec[_fx].wav
```
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issue