Repro steps:
1. Create a shadergraph
2. Create an enum keyword
3. Drag the keyword onto the graph and plug it into base color
4. Make the keyword node's inputs A: 1, B: 0.5, C: 0
5. Save the graph
6. Make a material from the graph
7. Set the enum to C
8. Go to the graph, reorder so C is where A was and A is where C was, and save
8.5: In versions of the editor where the material inspector has not been fixed to update when the enum updates in Shadergraph, restart unity. Otherwise, continue to part 9
9. Select the material
Expected result: the enum on the material is still C
Actual result: the material displays as if the enum was A, but the enum dropdown says it's C