[midPoint-git] [Evolveum/midpoint] c791a1: Attempt to fix "no real nor raw value" issue

[mederly]

  Branch: refs/heads/support-4.0
  Home:   https://github.com/Evolveum/midpoint
  Commit: c791a1fe0f60b60db04a5687a73f08aa957a0079
      https://github.com/Evolveum/midpoint/commit/c791a1fe0f60b60db04a5687a73f08aa957a0079
  Author: Pavol Mederly <mederly at evolveum.com>
  Date:   2021-08-31 (Tue, 31 Aug 2021)

  Changed paths:
    M infra/prism-impl/src/main/java/com/evolveum/midpoint/prism/impl/marshaller/PrismMarshaller.java
    M infra/schema/src/main/java/com/evolveum/midpoint/schema/util/TraceUtil.java

  Log Message:
  -----------
  Attempt to fix "no real nor raw value" issue

This is a very approximate backport of
90644c4c7df992ba5919efe8ca3776ca2e28e8d1. Plus a fix
of previous crude attempt to diagnose this issue.