test/support/builders/metadata: Fix #create() flow issue
test/support/builders/metadata: Fix #create() flow issue

Move doc assignment before check `this.pouch`.
So flow knows that `this.pouch` cannot been changed before calling #put().

nono/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,nono/cozy-desktop