Inconsistent results over a short period of time using an identical CirrusSearch "search filter" parameter

[lnoss]

The project rocks solid since years, but I met a problem recently. This request is giving different results each time: https://petscan.wmflabs.org/?edits%5Bflagged%5D=both&templates_any=&pagepile=&active_tab=tab_output&outlinks_yes=&manual_list=&search_wiki=frwiki&cb_labels_any_l=1&ores_prob_from=&labels_yes=&show_soft_redirects=both&edits%5Bbots%5D=both&labels_any=&wikidata_prop_item_use=&language=fr&sitelinks_yes=&langs_labels_any=&page_image=any&ns%5B0%5D=1&templates_no=&wikidata_label_language=&maxlinks=&smaller=&manual_list_wiki=&outlinks_no=&output_limit=10&links_to_all=C%C3%A9sar+du+meilleur+film&wikidata_source_sites=&cb_labels_no_l=1&search_max_results=500&sitelinks_no=&project=wikipedia&negcats=&langs_labels_no=&search_filter=insource%3A%2F%5C%5B%5C%5BC%C3%A9sar+du+meilleur+film%28%3F%3A%5C%7C%5B%5E%7C%5C%5D%5D*%29%3F%5C%5D%5C%5D%2Fi&rxp_filter=&links_to_no=&common_wiki_other=&after=&wikidata_item=no&cb_labels_yes_l=1&interface_language=en&doit=

Tried to check the source code, but I am not expert with Rust. Not funny note: PetScan just crashed when I was previewing this issue before submitting.

Reqwest(reqwest::Error 
{ 
kind: Request, 
url: Url { scheme: "https", cannot_be_a_base: false, username: "", 
password: None, 
host: Some(Domain("fr.wikipedia.org")), 
port: None, 
path: "/w/api.php", 
query: Some("action=query&siprop=general%7Cnamespaces%7Cnamespacealiases%7Clibraries%7Cextensions%7Cstatistics&format=json&meta=siteinfo"), 
fragment: None
}, source: hyper::Error(Io, Os { code: 104, kind: ConnectionReset, message: "Connection reset by peer" }) })

[magnusmanske]

The internal sort order is unstable (sort occurs at the end), and you are limiting the output to 10 results. Therefore, you get 10 different results each time, essentially a sample.

[lnoss]

I limited the output for the reporting. Without the limit, the returned set is unstable and different each time.