Copper golems attempt to pathfind through gaps that are too short

Reproduction: Place a two high ring of solid blocks with interior area at least 3x3. Replace one or more non-corner blocks from the bottom row with a candle, repeater, or comparator. Place a copper block in the center and place a carved pumpkin on top to spawn a copper golem.
Observe that the Copper Golem may choose a path to an outside location at this stage, but will usually collide with e.g. the candle, and choose a new wandering location shortly. Place an item in the chest for the golem to find and place a normal or trapped chest outside of the enclosure.

Expected result: Golem should realise it is unable to reach it’s target through a solid, though non-full block and continue wandering inside the enclosure.

Actual Result: Copper Golems will continuously attempt to pathfind through many less-than-full-height blocks, even when solid blocks are above them despite being too tall and/ or wide to fit through the gaps. Once a path is determined, Copper Golems will usually persist in trying to path through affected block until it or the solid block are removed even if many other blocks in the area are changed. If a copper golem's target is in other than a cardinal direction, they may drift sideways until finding the gap between two narrow blocks such as adjacent candles, but if target is directly north, south, east, or west, they will not have enough sideways movement to find those same gaps unless nudged.

Note: On chunk/world reload Golems may select another nearby chest to pathfind to which, if sufficiently off-axis, may allow them to navigate around the original obstacle.

Affected blocks include bottom and top trapdoors, carpets, redstone comparators and repeaters, different sizes of amethyst buds and clusters, candles, turtle eggs, daylight detectors and dripstone. Apparently excluded are player/mob heads, sea pickles, flower pots, conduits and dragon eggs.