System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.13

Blender Version
Broken: version: 3.2.2, branch: master, commit date: 2022-08-02 18:15, hash: rBbcfdb14560e7
Worked: (newest version of Blender that worked as expected)

Short description of error
Pretty much all numerical inputs of material nodes reset to 0 when Reset to Default Value operation is performed by hovering mouse over input fields and pressing backspace even when the default value is not 0.

For example Invert node's factor resets to 0, Vector Mapping node's scale resets to 0,0,0, Emission Shader's strength resets to 0, all inputs of Hue Saturation Value value reset to 0 and so on. If the node is reset entirely when selected and not hovering over particular input field they reset correctly.

Exact steps for others to reproduce the error

• make any object with a material
• in the shader editor create any of the nodes mentioned
• hover over some input field that has non zero default value when created and hit backspace.