P: Map module's Set All To The Same GPS Coordinates doesn't work

I do geocaching and other GPS stuff and citizen GPS accuracy in the USA is actually less than 10 feet so 100 feet should be addressed with a fix.

The problem also occurs with LR 8.4.1 / Mac OS 12.3.1.

Some experimentation confirms the threshold distance is 1 second of great-circle arc distance, which is a little more than 101' (30.9 m).  If that's as-designed, what's the design rationale for considering locations 101' apart as "the same"?  101' is more than three times the accuracy of typical GPS chips.

More generally, what's the design rationale for having any threshold at all?  Why shouldn't the command always set the photos to have the exact GPS coordinates?  

Here's what 101' looks like (hardly "very close together"):

Use cases for Set All To the Same GPS coordinates setting these two photos to have the same coordinates:

- Both photos were taken from the boat dock, one with a DSLR (no GPS) and one with an iPhone. The user dragged the DSLR photo to the map and now wants to correct its location to that of the phone.

- Both photos were taken from the boat dock, years apart. One was taken with an iPhone, and the other was geotagged many years ago with a tracklog from a Garmin wrist GPS that had mediocre GPS accuracy. 

See Engineer's comments:
"Looks like John has placed photos very closed to each other on the maps. Like the difference between the coordinates is less than a second
LrC is treating these as same coordinates. You can see the icon is not of the cluster of nearby photos but group photos at same location. See attached screenshotI am able to reproduce this on 11.1 as well.
Following GPS values it is reproducible
12°56'37.0729" N 77°41'49.6723" E
12°56'37.4582" N 77°41'50.0158" EAs soon as the difference between the coordinates is little higher, LrC treats them as different and option is enabled.
Not sure if this is a bug or as designed."

Note: I cannot attach his screenshot here.

I am leaving status as is until the engineer reports back on behavior. 

I retested this on 11.3.1 on Mac and Windows, and it's still broken (but the bug is still marked Fixed?).

[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]

Rikk,

LR 11.2 didn't fix this, unfortunately. (I thought I verified the fix, but apparently not.) In both LR 11.2 and 11.3 (Mac), when I right-click the bubble in step 3 of the recipe, Set All To The Same GPS Coordinates is greyed out: