bug: Step input incorrectly emptied out, when undoing deletion of flow step

[wasnertobias]

Describe the bug

When having a flow with a single step or multiple at once (loop) being deleted and then pressing CTRL + Z to undo it the step inputs are all empty.

To reproduce

1. Open flow editor with some steps, which have inputs
2. Delete a step
3. undo deletion

Expected behavior

Step input is recovered as well.

Screenshots

No response

Browser information

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Application version

No response

Additional Context

No response

[rubenfiszel]

@fatonramadani should save the state and restore it after cancel

[fatonramadani]

Fixed on latest