Hello, I searched didn't find anything.
Since the ranger pet swap got fixed by putting a cooldown on the swap, they didn't fix the issue itself.
The pets still have a reset on cooldown every time they go out/in.
A way to still take advantage of this is by standing near the water.
Pop whatever spell, go 2 steps down in the water, far enough to get you swimming / diving / whatever, (Pet gets dismissed) and then up. Voila! repeat as you were.