Electrically impossible happening...and rather worrisome

[aaiyar]

@vitaliy_kh

This bypass devices are nothing more than a resistors,

At least some of them are capacitors. The part number for Lutron's bypass (LUT-MLC) stands for "minimum load capacitor".

@Ranchitat has a detailed description of the LUT-MLC in this post:

Aeotec Bypass Dimmer - Alternative

According to Luke: 5.0 out of 5 stars It's a simple capacitor and it works to eliminate LED ghosting Reviewed in the United States on October 2, 2019 This is just a 0.47uF X1 310VAC rated capacitor. Electronic dimmers without neutral connections need a return path when the light bulb (load) is off to power the circuit inside the dimmer. This capacitor provides a lower impedance return path for the dimmer to bypass the bulb when "off" which reduces or eliminates LED ghosting. If you are not…