SBA PLC Decoder: Big diffs between Float and BASOP
# Basic info
<!--- Add commit SHA used to reproduce-->
- Float reference:
- Encoder (float): 957cd45f4d6e88fb0f52d5b1df258c1668a9c61e
- Decoder (float): 957cd45f4d6e88fb0f52d5b1df258c1668a9c61e
- Fixed point:
- Encoder (fixed): n/a
- Decoder (fixed): ca3146eb9de8185ed0247945c643267826a32a94
# Bug description
For decoding the attached bitstream, there are very big differences between IVAS float and BASOP decoder. I suspect this happens during PLC and I'm not sure whether it's audible, but it makes the comparison between float and BASOP really difficult.
**Diff BASOP - Float:**

# Ways to reproduce
<!--Commandline or script-->
```bash
IVAS_dec FOA 48 ltv48_FOA_ivasbr96k_DTX0_Gain0_PLperc42mblen2.192.fer out.wav
```
Bitstreams: [ltv48_FOA_ivasbr96k_DTX0_Gain0_PLperc42mblen2.zip](/uploads/fd8a7f2f8e0739ddb84812237b926c8e/ltv48_FOA_ivasbr96k_DTX0_Gain0_PLperc42mblen2.zip)
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issue