ValueError: Error instantiating 'nemo.collections.asr.modules.conv_asr.SpeakerDecoder' : invalid literal for int() with base 10: ','
**Describe the bug**

Following "NGC Pretrained Checkpoints"

from

https://docs.nvidia.com/deeplearning/nemo/user-guide/docs/en/stable/asr/speaker_recognition/results.html

**Steps/Code to reproduce bug**

Running: 

nemo_asr.models.EncDecSpeakerLabelModel.from_pretrained(model_name="speakerrecognition_speakernet")


**Expected behavior**

no error when loading pretrained model 

**Environment overview (please complete the following information)**

- google colab:
https://colab.research.google.com/github/NVIDIA/NeMo/blob/main/tutorials/speaker_recognition/Speaker_Recognition_Verification.ipynb

same on dgx with working riva-client container that has been used for other applications

**Environment details**

- google colab
- riva-client 1.4 with nemo "main"
