Inverted Daylight Sensor doesn't drop anything when mined, while the normal state daylight sensor drops itself. Don't pay attention to the tool used in the screenshots, it happens even without a tool.
Video, showing off the issue: https://www.youtube.com/watch?v=dwRCHte7OVo
Linked issues
is duplicated by 13
MC-64585
"Night Sensors" do not drop anything when broken.
Resolved
MC-64617
Daylight Sensor Inverted don't drop anything
Resolved
MC-64841
Breaking Daylight Sensors
Resolved
MC-64855
Nighttime sensors won't drop when broken
Resolved
MC-64927
When you try to break a Night time dispenser, it simply breaks, shows particles, and disappears.
Resolved
8 more links
I can confirm this bug. If a daylight sensor is inverted when it's broken, it doesn't drop anything. It doesn't matter with any tool or you fist, no item drop. If you switch an inverted sensor back to normal, it can be broken and picked up like normal.