mumi search by date provides unexpected results

This report is for the instance at issues.guix.gnu.org. The hint under

the search field and the online help documentation suggest that "date:"

filter can be used to improve the search results.[1] However, the

results are different from what is documented. For example, there is a

report submitted on 16 February 2022 and a patch submitted on 20

Fenruary 2022 both contaning the word "mumi".[2][3] I can see them at

the end of search results when searching for "mumi".[4] But I cannot

find them with any of the following:

1. mumi date:20d..now

2. mumi date:2022-02-01..2022-02-28

The first one returns older posts only.[5] The second one returns

nothing.[6]

And the last hinted filter does return links to the expected issues but

also returns other issues which are apparently out of the specified

time period and so introduces noise in the search results making

filtering less effective:[7]

3. mumi date:1m..today

---

[1] https://issues.guix.gnu.org/help#search

[2] https://issues.guix.gnu.org/54024

[3] https://issues.guix.gnu.org/54072

[4] https://issues.guix.gnu.org/search?query=mumi

[5] https://issues.guix.gnu.org/search?query=mumi+date%3A20d..now

[6]

[7] https://issues.guix.gnu.org/search?query=mumi+date%3A1m..today

---

Roman

The date search seems to mess up other filters as well:

date:1m..now is:open

Here are 2 wrong results:

56512 URLs in coreutils manuals documentation should use HTTPS Tue Jul 12 07:19:25+0200 2022 Done

15284 patchwish: make the (name) field optional Fri Sep 06 11:06:27+0200 2013 Open

First issue is closed, failing is:open filter

Second issue is older than 1 month from now, failing date:1m..now filter

reassign 65858 mumi

reassign 65809 mumi

reassign 49295 mumi

reassign 64833 mumi

reassign 54204 mumi

reassign 68920 mumi

reassign 55765 mumi

reassign 65923 mumi

reassign 63507 mumi

reassign 60226 mumi

reassign 63936 mumi

reassign 60951 mumi

reassign 66027 mumi

thanks