How to interpret the output of -Ddebugmemory

[BigBoyBarney]

Hi!
Quick, probably silly question.

I ran into a traumatising memory leak / flood, even, so I thought I'd build the app with -Ddebugmemory to see what's up.

I attached the output of an average test run.
output.txt

Something is very obviously leaking, but I don't know how to read the output to figure out what / why. Signals are killing me and I'm stumped 😭

Any tips, advice or pointers would be very much appreciated 🙏

Some of the lines have names, such as GridImageOverlay, but others don't, and are just like

Deregistering 7f79081081a0 from ClosureDataManager, count: 1.

What does this mean?
Thanks in advance!

[BigBoyBarney]

To add on to this, these blocks

Registering 7f68b123b740 on ClosureDataManager, count: 0.
Registering 7f68b123b720 on ClosureDataManager, count: 0.
Registering 7f68b123b700 on ClosureDataManager, count: 0.
Registering 7f68b123b6e0 on ClosureDataManager, count: 0.
[... some more lines ...]
Deregistering 7f68b123b740 from ClosureDataManager, count: 1.
Deregistering 7f68b123b720 from ClosureDataManager, count: 1.
Deregistering 7f68b123b700 from ClosureDataManager, count: 1.
Deregistering 7f68b123b6e0 from ClosureDataManager, count: 1.

probably comes from

{% for prop in ["title", "episodes_total", "episodes_aired", "episodes_watched"] %}
  widget.temp_signal_connections << data.notify_signal[{{prop.gsub(/_/, "-")}}].connect do
    widget.overlay.{{prop.id}} = data.{{prop.id}}
  end
{% end %}

And then in the widget

while signal = @temp_signal_connections.shift?
  signal.disconnect
end

So I assume the unnamed lines are all signals? I'm clearly disconnecting them though, how come the reference is still 1?

Even doing something simple like

signal = data.notify_signal["title"].connect do
  widget.overlay.title = data.title
end

signal.disconnect

results in

Registering 7fac5a27a760 on ClosureDataManager, count: 0.
Deregistering 7fac5a27a760 from ClosureDataManager, count: 1.
Registering 7fac5a27a720 on ClosureDataManager, count: 0.
Deregistering 7fac5a27a720 from ClosureDataManager, count: 1.
Registering 7fac5a27a6c0 on ClosureDataManager, count: 0.
Deregistering 7fac5a27a6c0 from ClosureDataManager, count: 1.

Is it supposed to be 1?