1950587 - Ensure re-registering pings doesn't cause state confusion

Status: NEW

(Data Platform and Tools :: Glean: SDK, enhancement)

Description

[Jan-Erik Rediger [:janerik]]

bug 1947748 showed another instance of confusion what is the valid state of pings after they get re-registered.
We should tackle that better and ensure we only ever have a single instance per ping name around and thus no more state confusion.

This could work by ensuring we re-use an already registered instance if a new one is created (by looking it up in the registry).
Or by merging the state somehow.

Comment 1

[Jan-Erik Rediger [:janerik]]

A problem with that lookup/interning of ping instances is that we allow ping registration before Glean is initialized.
It will require a bit more to deal with that second list of pings.