"Use last queued seed" button is not selectable after clicking it until new random seed
This is very unnecessary behavior that gets in the way sometimes if you were to want to select it again multiple times for some reason.
It can always be triggered any time with the "fast actions button" node, so it's just a strange ui behavior.
https://github.com/user-attachments/assets/3146e32e-1e01-4df9-be27-44b763fa802e
Video showing the difference in how it COULD work and how it currently works. The current seed node has two buttons to select a random seed and the previous seed. When a random seed is selected the previous seed is discarded internally, however, using 'Ctrl + z' recovers the previous seed, but that is frontend behavior, not from the node.
The 'Efficient KSampler' has an implementation of internal seed history, demonstrating this feature's feasibility.