Lock layer hotkey - bug?

Hi,
I'm using Photoshop CC 2018 (19.1.3) and I have a question about the hotkey forward slash ' / '
I checked the official hotkey list from Adobe and it seems ' / ' is used to "Toggle Preserve Transparency". From my testing, it seems it actually toggles the last type of layer lock you used (lock transparent pixels, position, nesting, etc). Is this a bug or is the hotkey list unreliable?

Furthermore, though less of a problem, I didn't find ' Ctrl + / ' in the list, which seems to enable 'lock all'.
Any thoughts about it?
Chris.