Consider this example:
We have one single electron cannon that is not obstructed in any way. We have a second parallel single cannon electron that fires simultaneously with the previous one. The second cannon can is obstructed by wall with two slits which then lead to two separate chambers. The top chamber is shared with electrons from the first canon. The bottom chamber is not shared. We have a detector in each of the chambers.
My understanding of this example is that interference on the upper detector constitutes a measurement for the lower detector (lower electron went through upper slit) and lack of interference on the upper detector also constitutes a measurement (right electron went through lower slit). Am I then correct that on the lower detector we will see corpuscular pattern with density equivalent to 50% of the firing rate of a single cannon whilst on the upper detector we will see a sum of 50% density corpuscular pattern and 100% density interference pattern?