Meteor Tracker autorun fires 2 times - meteor

Question

This Meteor client code tries to make the Tracker.autorun to run once but as it appears to be that it has to run twice, once for setting and once for reactiveness.
Which is fine but it is firing 3 times. Once for setting and 2 for reacting even though the server only updated the user.profile.abc once.
To test it, I run this code in the mongodb console and the the iamge attached is what I got which confirms it fires twice.
How can I get it to run only once for responding to the changes in the users collection? Thanks
db.users.update({_id: Meteor.userId()},{$set: {'profile.ABC': ['a','b']}}).pretty()
//client
Meteor.call('cleanABC', (err) => {
if (!err) {
ABCListener();
}
});
ABCListener: () => {
Tracker.autorun(() => {
if (Meteor.userId()) {
console.log('auto run invoked');
if (Meteor.user().profile.ABC) {
const myArray = Meteor.user().profile.ABC;
//myFunction(myArray);
console.log('condition true');
} else {
console.log('condition false');
}
}
});
}
//server
'cleanABC': function() {
return Meteor.users.update({
_id: Meteor.userId()
}, {
$unset: {
'profile.ABC': ''
}
});
}
//and some where else in the code
Meteor.users.update({
_id: userId
}, {
$set: {
'profile.ABC': myArray
}
}, (err) => {
if (!err) {
console.log('just sent the array');
}
});

Answer 1

I think the problem is that you are just calling Tracker.autorun everytime you call the method.
I think if you change your client code to:
//client
ABCListener: () => {
Tracker.autorun(() => {
if (Meteor.userId()) {
console.log('auto run invoked');
if (Meteor.user().profile.ABC) {
const myArray = Meteor.user().profile.ABC;
//myFunction(myArray);
console.log('condition true');
} else {
console.log('condition false');
}
}
});
}
Meteor.call('cleanABC');
it should work.