Saheeli 3rd ability glitch

obsidianpeanut

Saheeli Rai's 3rd ability "Vehicular Assembly" at level 4 states "Fetch the next 4 vehicles from your library and put them on the battlefield."

My deck only runs 1 vehicle, Demolition Stomper, to avoid any issues with creature space on the battlefield.
If I use the 3rd ability I expect to get 4 of these vehicles resulting in a 16/16.

I've noticed that if I already have the vehicle in my hand, the 3rd ability does not produce all 4 vehicles.
Ex. If I have 1 Demolition Stomper in hand and execute the 3rd ability, it will only place 3 on the battlefield. If I have 2 in hand, it will only place 2 on the battlefield.

I thought initially this may be limited because of the 4 cards to the 40 card deck shuffle, but that would be inconsistent with other cards using the word FETCH.

Repeatedly using cards such as "Anticipate" and "Seek the Wilds" that allow fetching will offer more than 4 instances of a card in under a 40 card deck.
And "Sylvan Messenger" will repeatedly pull itself before going through a 40 card deck.

In addition, I've had an instance where I had 1 Demolition Stomper in hand and 1 on the battlefield before using Saheeli's 3rd ability, and in this case, it fetched 3 additional Demolition Stompers and placed them on the field (5 instances in under 40 cards) - this also seems inconsistent if the glitch has to do with the 4 cards in a 40 card deck.

Please look into this issue. If no fix is made, it cripples the PW and makes the ability way too expensive.