Not getting the correct data from REST call api/content when using the "start" query parameter

[Stephen Herring]

I was trying to get data from Confluence using the cql query:  Space = CDO AND Label = incident-reports AND Created >= 2023-01-07 from the REST api/content endpoint.

I know that there are 40 results.  When I make the following REST call passing a limit value of 50 I get all 40 records I expect:

https://XXXXXX.atlassian.net/wiki/rest/api/content/search?cql=%28space%20%3D%20%22CDO%22%20and%20label%20%3D%20%22incident-reports%22%20and%20created%20%3E%3D%20%222023-01-07%22%29&limit=50&start=0&expand=version%2Cspace%2Cspace.icon%2Cspace.description%2Cspace.homepage

However, if I try to get the results in 2 calls, both with a limit of 25, I expect to get the first 25 records in the first call and the remaining 15 in the second.  The 2 REST calls are:

https://XXXXXX.atlassian.net/wiki/rest/api/content/search?cql=%28space%20%3D%20%22CDO%22%20and%20label%20%3D%20%22incident-reports%22%20and%20created%20%3E%3D%20%222023-01-07%22%29&limit=25&start=0&expand=version%2Cspace%2Cspace.icon%2Cspace.description%2Cspace.homepage

AND

https://XXXXXX.atlassian.net/wiki/rest/api/content/search?cql=%28space%20%3D%20%22CDO%22%20and%20label%20%3D%20%22incident-reports%22%20and%20created%20%3E%3D%20%222023-01-07%22%29&limit=25&start=25&expand=version%2Cspace%2Cspace.icon%2Cspace.description%2Cspace.homepage

The first is as expected, but the second call returns the same result set as the first.  That is the first 25 records, rather than the remaining 15.  Surely this is not right?