Issue Summary

Search API results order intermittently changes from request to request (using the same query). The impact that this issue can have on data quality and user experience is significant, in that paginating through search result data could lead to presenting/processing duplicate data, or data omission (a result being skipped).

Steps to Reproduce

1. Open your favorite web browser (JSON-formatter plugin helpful, but optional)
2. Open the following search API request 7 to 10 times (into different tabs): https://ecosystem.atlassian.net/wiki/rest/api/latest/content/search?expand=space&limit=10&start=5&cql=space%3DMAR+and+type%3Dpage
3. Observe results between the tabs

Expected Results

Search result order will be identical for each request.

Actual Results

Search result order varies intermittently. 

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Workaround

Currently there is no known workaround for this behavior.