[BUG] v11.6.3 breaks CI #8758

0 verbose cli /user-home/.local/share/fnm/node-versions/v24.11.1/installation/bin/node /user-home/.npm-global/bin/npm
1 info using npm@11.6.3
2 info using node@v24.11.1
3 silly config load:file:/user-home/.npm-global/lib/node_modules/npm/npmrc
4 silly config load:file:/user-home/project/.npmrc
5 silly config load:file:/user-home/.npmrc
6 silly config load:file:/user-home/.npm-global/etc/npmrc
7 verbose title npm ci
8 verbose argv "ci"
9 verbose logfile logs-max:10 dir:/user-home/.npm/_logs/2025-11-20T11_20_57_141Z-
10 verbose logfile /user-home/.npm/_logs/2025-11-20T11_20_57_141Z-debug-0.log
11 silly logfile start cleaning logs, removing 1 files
12 silly packumentCache heap:4496293888 maxSize:1124073472 maxEntrySize:562036736
13 silly logfile done cleaning log files
14 silly Conflicting override sets <ref *1> OverrideSet {
14 silly Conflicting override sets   parent: undefined,
14 silly Conflicting override sets   children: Map(2) {
14 silly Conflicting override sets     '@playwright/experimental-ct-core' => OverrideSet {
14 silly Conflicting override sets       parent: [Circular *1],
14 silly Conflicting override sets       children: [Map],
14 silly Conflicting override sets       name: '@playwright/experimental-ct-core',
14 silly Conflicting override sets       key: '@playwright/experimental-ct-core',
14 silly Conflicting override sets       keySpec: '*',
14 silly Conflicting override sets       value: '*'
14 silly Conflicting override sets     },
14 silly Conflicting override sets     'mdast-util-gfm' => OverrideSet {
14 silly Conflicting override sets       parent: [Circular *1],
14 silly Conflicting override sets       children: [Map],
14 silly Conflicting override sets       name: 'mdast-util-gfm',
14 silly Conflicting override sets       key: 'mdast-util-gfm',
14 silly Conflicting override sets       keySpec: '*',
14 silly Conflicting override sets       value: '*'
14 silly Conflicting override sets     }
14 silly Conflicting override sets   }
14 silly Conflicting override sets } undefined
15 verbose stack TypeError: Cannot read properties of undefined (reading 'ruleset')
15 verbose stack     at OverrideSet.haveConflictingRules (/user-home/.npm-global/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/override-set.js:220:32)
15 verbose stack     at OverrideSet.doOverrideSetsConflict (/user-home/.npm-global/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/override-set.js:214:17)
15 verbose stack     at get error (/user-home/.npm-global/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/edge.js:278:74)
15 verbose stack     at get valid (/user-home/.npm-global/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/edge.js:251:18)
15 verbose stack     at visit (/user-home/.npm-global/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:342:71)
15 verbose stack     at visitNode (/user-home/.npm-global/lib/node_modules/npm/node_modules/treeverse/lib/depth-descent.js:58:25)
15 verbose stack     at next (/user-home/.npm-global/lib/node_modules/npm/node_modules/treeverse/lib/depth-descent.js:44:19)
15 verbose stack     at depth (/user-home/.npm-global/lib/node_modules/npm/node_modules/treeverse/lib/depth-descent.js:83:10)
15 verbose stack     at depth (/user-home/.npm-global/lib/node_modules/npm/node_modules/treeverse/lib/depth.js:27:12)
15 verbose stack     at /user-home/.npm-global/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:330:9
16 error Cannot read properties of undefined (reading 'ruleset')
17 silly unfinished npm timer idealTree:init 1763637657714
18 verbose cwd /user-home/project
19 verbose os Linux 6.17.7-1-default
20 verbose node v24.11.1
21 verbose npm  v11.6.3
22 verbose exit 1
23 verbose code 1
24 error A complete log of this run can be found in: /user-home/.npm/_logs/2025-11-20T11_20_57_141Z-debug-0.log