[midPoint-git] [Evolveum/midpoint] bf12aa: Fix excessive cloning when deleting PCVs by ID

[mederly]

  Branch: refs/heads/tmp/mid-7057
  Home:   https://github.com/Evolveum/midpoint
  Commit: bf12aa5bcd7ba3cb42119d1def6c4588d99963e0
      https://github.com/Evolveum/midpoint/commit/bf12aa5bcd7ba3cb42119d1def6c4588d99963e0
  Author: Pavol Mederly <mederly at evolveum.com>
  Date:   2021-05-19 (Wed, 19 May 2021)

  Changed paths:
    M model/model-impl/src/main/java/com/evolveum/midpoint/model/impl/lens/LensFocusContext.java
    M model/model-intest/src/test/java/com/evolveum/midpoint/model/intest/mapping/TestMapping.java
    A model/model-intest/src/test/resources/mapping/resource-dummy-mega-outbound.xml
    M repo/repo-common/src/main/java/com/evolveum/midpoint/repo/common/expression/ExpressionUtil.java
    M repo/repo-common/src/main/java/com/evolveum/midpoint/repo/common/expression/PathExpressionResolver.java

  Log Message:
  -----------
  Fix excessive cloning when deleting PCVs by ID

The normalization of values to-be-deleted was done too lately,
leading to excessive cloning (basically at each mapping source
evaluation). This is now fixed. The normalization is done when
ODO is computed in the focus context.

This resolves MID-7057. However, it is only an approximate fix
for now. The more thorough analysis of the problem is needed.