mock doesnt seem to work on hardhat with v4

[sirpy]

Describe the bug
Upgrading to waffle v4 seems not to work.
same setup that works in v3 returns an error "Mock on the method is not initialized" with v4

To Reproduce
use hardhat
mock contract + function
try to call to call contract.mockedFunction()

Software versions

• ethereum-waffle 4.04
• @nomiclabs/hardhat-ethers 2.2.1
• hardhat 2.6.1
• Package manager yarn
• Node version 18