[Bug?] BeginPlay fired again on PIE component changes

From some reason it seems BeginPlay is called again when I’m changing a public variable
on an component, on an actor, while using Play In Editor.

Is there anyway to disable it?

p.s.
The reason I want to disable it is because my BeginPlay spawns a new actor; when making a change in PIE, and the BeginPlay is called, all SpawnActor are failing (log says it’s because a constructor is called, but putting a breakpoint in constructor doesn’t seem to show that)

Edit

After looking a bit, the behavior seems to differ a bit whether the property is a structure or not.
If it’s a structure, after a change, the property becomes disabled (and editor sometimes crash).
If not (and the variable is a vector or a float), I can still edit it, and the errors will show up in the output log when done.

Not sure if it matters/helps.