bug#63507: [mumi] /recent causes crash

[Ricardo Wurmus]

Visiting issues.guix.gnu.org/recent leads to this crash:

--8<---------------cut here---------------start------------->8---
2023-05-14 23:11:35 GET /recent
2023-05-14 23:11:35 In mumi/web/server.scm:
2023-05-14 23:11:35      35:9 95 (handler _ _)
2023-05-14 23:11:35 In mumi/web/controller.scm:
2023-05-14 23:11:35     66:19 94 (_ _)
2023-05-14 23:11:35 In mumi/web/view/html.scm:
2023-05-14 23:11:35    779:10 93 (list-of-recent-issues _)
2023-05-14 23:11:35 In srfi/srfi-1.scm:
2023-05-14 23:11:35    586:29 92 (map1 (#<<bug-status> num: 63506 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 91 (map1 (#<<bug-status> num: 63505 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 90 (map1 (#<<bug-status> num: 63504 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 89 (map1 (#<<bug-status> num: 63503 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 88 (map1 (#<<bug-status> num: 63502 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 87 (map1 (#<<bug-status> num: 63501 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 86 (map1 (#<<bug-status> num: 63500 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 85 (map1 (#<<bug-status> num: 63499 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 84 (map1 (#<<bug-status> num: 63498 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 83 (map1 (#<<bug-status> num: 63494 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 82 (map1 (#<<bug-status> num: 63491 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 81 (map1 (#<<bug-status> num: 63490 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 80 (map1 (#<<bug-status> num: 63489 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 79 (map1 (#<<bug-status> num: 63488 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 78 (map1 (#<<bug-status> num: 63486 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 77 (map1 (#<<bug-status> num: 63485 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 76 (map1 (#<<bug-status> num: 63483 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 75 (map1 (#<<bug-status> num: 63482 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 74 (map1 (#<<bug-status> num: 63479 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 73 (map1 (#<<bug-status> num: 63478 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 72 (map1 (#<<bug-status> num: 63477 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 71 (map1 (#<<bug-status> num: 63476 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 70 (map1 (#<<bug-status> num: 63475 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 69 (map1 (#<<bug-status> num: 63474 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 68 (map1 (#<<bug-status> num: 63473 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 67 (map1 (#<<bug-status> num: 63471 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 66 (map1 (#<<bug-status> num: 63468 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 65 (map1 (#<<bug-status> num: 63467 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 64 (map1 (#<<bug-status> num: 63466 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 63 (map1 (#<<bug-status> num: 63465 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 62 (map1 (#<<bug-status> num: 63464 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 61 (map1 (#<<bug-status> num: 63462 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 60 (map1 (#<<bug-status> num: 63461 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 59 (map1 (#<<bug-status> num: 63460 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 58 (map1 (#<<bug-status> num: 63459 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 57 (map1 (#<<bug-status> num: 63458 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 56 (map1 (#<<bug-status> num: 63457 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 55 (map1 (#<<bug-status> num: 63456 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 54 (map1 (#<<bug-status> num: 63454 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 53 (map1 (#<<bug-status> num: 63453 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 52 (map1 (#<<bug-status> num: 63452 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 51 (map1 (#<<bug-status> num: 63451 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 50 (map1 (#<<bug-status> num: 63450 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 49 (map1 (#<<bug-status> num: 63449 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 48 (map1 (#<<bug-status> num: 63448 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 47 (map1 (#<<bug-status> num: 63447 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 46 (map1 (#<<bug-status> num: 63446 archived: #f 
blocke…> …))
2023-05-14 23:11:35    586:29 45 (map1 (#<<bug-status> num: 63445 archived: #f 
blocke…> …))
2023-05-14 23:11:35 Mumi web server listening on http://0.0.0.0:1234/
2023-05-14 23:11:35 In procedure struct-vtable: Wrong type argument in position 
1 (expecting struct): #f
--8<---------------cut here---------------end--------------->8---

-- 
Ricardo