Using promisify in before or beforeEach doesn't work as expected

[NicholasBoll]

.promisify seems to work perfectly well if used anywhere in an it block, but a before and beforeEach will exit early if .promisify is used in a before or beforeEach block and is not the last chain.

Example (doesn't work):

describe('when used with beforeEach', () => {
  beforeEach(async () => {
    await cy.wrap('foo').promisify()

    cy.get('body').should('not.exist') // assertion shows in the test, instead of the beforeEach hook
  })
  

  it('should not run any beforeEach commands in this block', () => {
    cy.wrap('bar').should('equal', 'bar')
  })
})

Example (works, but added await to every command after first await):

describe('when used with beforeEach', () => {
  beforeEach(async () => {
    await cy.wrap('foo').promisify()

    await y.get('body').should('not.exist').promisify() // works as expected
  })
  

  it('should not run any beforeEach commands in this block', () => {
    cy.wrap('bar').should('equal', 'bar')
  })
})

Switching the first example to use before results in a Cypress error:

CypressError: Cypress detected that you returned a promise from a command while also invoking one or more cy commands in that promise.