Send Slack notification after issue creation

Hello,

We have a workflow that send a Slack notification after an issue is created. It was working perfectly until we decided to create another workflow for mandatory fields.

If we create an issue and forget to fill a field, when we click on create issue we display a message to the user, but unfortunately the Slack notification is send.

I think it is linked to the issue.becomesReported that triggers even if the issue is not created

We use YouTrack 2017.3 and here are the 2 workflows :

var entities = require('@jetbrains/youtrack-scripting-api/entities');

exports.rule = entities.Issue.onChange({
 title: 'Choose Category when new issue is created',
 guard: function(ctx) {
 var issue = ctx.issue;
 return issue.becomesReported &&
 !issue.fields.Category && ctx.issue.fields.Type.name != 'Epic';
 },
 action: function(ctx) {
 ctx.issue.fields.required(ctx.Category, 'Please choose issue Category before submitting');
 },
 requirements: {
 Category: {
 type: entities.EnumField.fieldType
 }
 }
});


var entities = require('@jetbrains/youtrack-scripting-api/entities');
var http = require('@jetbrains/youtrack-scripting-api/http');

exports.rule = entities.Issue.onChange({
 title: 'Send notification when an issue is created',
 guard: function(ctx) {
 var issue = ctx.issue;
 return issue.becomesReported && issue.isReported;
 },
 action: function(ctx) {
 var issue = ctx.issue;

 //Slack message 
 },
 requirements: {
 State: {
 type: entities.State.fieldType
 },
 Priority: {
 type: entities.EnumField.fieldType
 }
 }
});

Can you give us a hand on this ?

Thanks in advance
Regards