Root graph gets dirty when viewing a dirty subgraph

Steps to reproduce:

1. Open the "65ETS.zip" project
2. Open the "New Graph" graph
3. Enter the subgraph "New Graph 1" from within the canvas
4. Make the subgraph dirty by creating a variable
5. Through breadcrumbs, exit to the graph "New Graph"
6. Save the changes
7. Enter and leave the subgraph
8. Observe the window

Actual results: The graph window gets dirty

Expected results: The graph window stays unmodified

Reproducible with versions: 0.4.0-exp.2 (6000.3.0a6, 6000.3.15f1), 6000.4.7f1, 6000.5.0b8, 6000.6.0a4

Can’t test with versions: 6000.0.75f1 (No Graph Toolkit)

Tested on (OS): Windows 11 Pro (25H2)

Notes:

• In 6000.3.15f1, the behavior is slightly different. The root graph doesn't get dirty until it is saved (if the dirty child is saved), then the subgraph gets dirty as well