Problem Statement/Rationale

• 🚨 Compass sometimes runs aggregation pipelines without the user clicking 'run'.
• This puts users at significant risk of running pipelines prematurely, this could easily lead to destroying data unintentionally.
• (I noticed this bug with a dev db, I have not lost data 🤞🏽)

Please be sure to attach relevant logs with any sensitive data redacted.
How to retrieve logs for: Compass; Shell

Steps to Reproduce

• Creating an aggregation pipeline using the 'stages' view
• Add some stages, including a final merge step, back into the original collection
• Take note of what the intermediate preview docs
• Click to switch to the text view
• Click back to the stages view
• Notice that the pipeline has been executed!
  • I think execution occurs when first clicking to switch to code view, but it is possible it occurs when switching back.
• I never clicked "Run". There was no confirmation modal.

Expected Results

What do you expect to happen?

Aggregation pipelines are high-risk data transformations. Compass should only run aggregation pipelines after an explicit user action.

Actual Results

What do you observe is happening?

Compass runs aggregation pipelines (including $merge) without the user pressing 'run'.

Additional Notes

I have noticed this for several pipelines across the last 1-2 weeks. This when I started using the code view.

This is one example. Notice that the pipeline filtering docs then altering them so they become excluded from the initial $match. This means that looking at the Compass preview documents it is obvious when the pipeline has been executed because all the previews disappear.

// Pipeline on a collection called "integrations"
```

[
  {
    $match:
      /**
       * query: The query in MQL.
       */
      {
        roles: {           $exists: false,         },
      },
  },
  {
    $set:
      /**
       * field: The field name
       * expression: The expression.
       */
      {
        roles: [
          {             tenantId: "*",             role: "member",           },
        ],
      },
  },
  {
    $merge:
      /**
       * into: The target collection.
       * on: Fields to  identify.
       * let: Defined variables.
       * whenMatched: Action for matching docs.
       * whenNotMatched: Action for non-matching docs.
       */
      {         into: "integrations",         on: "_id",         whenMatched: "merge",         whenNotMatched: "fail",       },
  }
]

```