JIRA Post function of type Update Issue Field is not displaying the set values

Description

Since the latest JIRA release (v7.0.0-OD-02-247), whenever the user try to create a new Post function of type Update Issue Field, the text shown on the issue Post function does not always reflect the Post function created.

Examples:
Updating the Assignee:

The Assignee of the issue will be set to $textutils.htmlEncode(${fieldValue}).

Updating the Priority/Resolution:

• If there's a Condition set in the same Workflow, the message displayed in the post function will be the same as the condition:
  Condition

  Only users in project role Service Desk Team can execute this transition.
  

  Post function

  Only users in project role Service Desk Team can execute this transition.
  

• If there's no Conditions, then the message displayed changes to:

  Type: class
  Class: com.atlassian.jira.workflow.function.issue.UpdateIssueFieldFunction
  Arguments:
  field.name = priority
  full.module.key = com.atlassian.jira.plugin.system.workflowupdate-issue-field-function
  field.value = 4
  

It's impossible to re-order the Post functions when their descriptions match the condition set, but if the post function is displaying the type and class, reorder is possible again, however, if the reordering is done, the post function will mimic the behaviour of the exact above post function.

Steps to reproduce

1. Create a condition in any workflow.
2. Create a post function of type: Update Issue Field to change the resolution field, for example.

Expected
The post function have its name and its properties.

Actual
The post function mimics the behaviour and properties of the conditions set.