camessage.c: do not check if th client version is compatible, before

receiving the version from the client

modules/database/src/ioc/rsrv/camessage.c

@@ -2460,15 +2460,19 @@ int camessage ( struct client *client )
         }
 
         /*
-         * ignore deprecated clients, but let newer clients identify themselves.
+         * Ignore deprecated clients, but let newer clients identify themselves.
+         *
+         * If "client->minor_version_number" is 0, it means that we haven't received the minor
+         * version number from the client yet, so we don't check the version.
          *
          * Note: when the command is "CA_PROTO_VERSION", as that is the first message when creating a circuit
          * "client->minor_version_number" will be 0, so we can not determine the protocol version using it.
          * On the other hand, the header of a "CA_PROTO_VERSION" packet contains the minor protocol version
          * number in the location of the "m_count" field which could be used, however that field is always 0
          * for versions < CA_V49, so we can not rely that for detecting older, deprecated versions.
          */
-        if (msg.m_cmmd!=CA_PROTO_VERSION && !CA_VSUPPORTED(client->minor_version_number)) {
+        if (msg.m_cmmd!=CA_PROTO_VERSION && client->minor_version_number!=0 &&
+            !CA_VSUPPORTED(client->minor_version_number)) {
             if (client->proto==IPPROTO_TCP) {
                 /* log and error for too old clients, but keep the connection open to avoid a
                  * re-connect loop.