dpd.sig rejection syntax

Hello All,

There are two protocols, A and B which use <STX> and <ETX> to encapsulate
their data.  Both protocols operate over 20+ ports, and the only difference
is that protocol B starts with lowercase 's' after \x02.  I've looked over
the dpd.sig files on Zeek GitHub but didn't find anything for rejection.
I've tried adding (!s), [!s] after \x02, but protocol A stops logging... so
I know there's a syntax issue.

##! Match for <STX>...<ETX>
signature dpd_02_03_client {
ip-proto == tcp
payload /\x02.{0,1500}\x03/
tcp-state originator
enable "A"
}

##! Match for <STX>...<ETX>
signature dpd_02_03_server {
ip-proto == tcp
payload /\x02.{0,1500}\x03/
tcp-state responder
enable " A"
}

Thanks,

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