We have discovered that some IP cameras send two publish packets in a
row.
The first packet is flash publish `publish('xxx')`
The second packet is FMLE publish `FCPublish('xxx|@setDataFrame()`
It seems that this is not processed correctly on the SRS side. In fact,
the stream is simply deinitialized, and republish is simply not
supported in this case.
As a fix, I suggest simply ignoring the FMLE publish packet after the
flash publish.
<img width="720" alt="screen"
src="https://github.com/user-attachments/assets/2db806ab-71b9-4e7b-bcf9-c16ea12df671"
/>
4101900daf
