New session not available sometimes to subsequent request with batch mode on cache config

Issue

• We have a client app that is fetching a new session in one request. After seeing the response line providing the JSESSIONID cookie, the app forms and sends a second request with that JSESSIONID. But sometimes that JSESSIONID is not available or found by the second request. It seems there is some timing issue at play here if the second request occurs too quickly. We have batch mode enabled on our cache config:

  <cache-container name="web" default-cache="passivation" module="org.wildfly.clustering.web.infinispan">
      <local-cache name="passivation">
          <transaction mode="BATCH"/>
          <file-store passivation="true" purge="false"/>
      </local-cache>
      ...