Most blocks lack the ability to store NBT when ctrl + pickblocked. One would expect only blocks that have the ability to store information to be ctrl+pick-block'able. When ctrl + pick-block is used on a daylight detector, a player recieves a daylight detector with an NBT data. 

Despite this, even if daylight detector was switched to the "inverted: true" mode (night), the inverted state does not get stored as an item form when ctrl+pick block'ed.

Daylight detector should either recieve ability to store inverted true state when ctrl + pick block is used, or this ability should be removed all together, as placing it does absolutely nothing and defaults to normal.