Blueprints stay marked as dirty for compilation when using reroute nodes without blueprint compilation manager

A licensee has reported a problem where having reroute nodes causes blueprints to always be dirty after being compiled when the new compilation manager is disabled.

Regression?: No
This occurred in 4.18 as well

1. Open a project
2. Create a blueprint based off of Actor
3. In Edit -> Project Settings, disable "Use Compilation Manager"
4. Open the blueprint
5. Add a couple nodes that can connect to each other
6. Create a reroute node that connects the two nodes
7. Compile the blueprint
   Result: The compilation succeeds according to the Compiler Results but the compilation button is still marked as though there are changes that need to be compiled
   Expected: The blueprint compiles successfully and the compilation button reflects this.