RU AdList: Counters (cntblock.txt) "Last modified:" field is broken

### Prerequisites - [x] I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the [uAssets issue tracker](https://github.com/uBlockOrigin/uAssets/issues). - [x] This is **NOT** a [_YouTube_](https://www.github.com/uBlockOrigin/uAssets/issues/30157), [_Facebook_](https://www.github.com/uBlockOrigin/uAssets/issues/3367) or [_Twitch_](https://www.github.com/uBlockOrigin/uAssets/issues/5184) report. _These sites MUST be reported by clicking their **respective links**_. - [x] This is not a support issue or a question. For support, questions, or help, visit [/r/uBlockOrigin](https://www.reddit.com/r/uBlockOrigin/). - [x] I performed a [cursory search of the issue tracker](https://github.com/uBlockOrigin/uBlock-issues/issues?q=is%3Aissue) to avoid opening a duplicate issue. - [x] The issue is not present after disabling uBO in the browser. - [x] I checked the [documentation](https://github.com/gorhill/uBlock/wiki) to understand that the issue I am reporting is not normal behavior. ### I tried to reproduce the issue when... - [x] uBO is the only extension. - [x] uBO uses default lists and settings. - [x] using a new, unmodified browser profile. ### Description Viewing the filter lists contents in the uBO interface, I've found that the "header" of the "RU AdList: Counters" filter list ("cntblock.txt" file), instead of a specific modification date, contains just the "%timestamp%" string. Primarily, I've opened the issue in the corresponding filter list repo, but one of its maintainers responded, that it is a problem on an uBO side, something with list update automation. The wrong behavior looks like this: ``` [Adblock Plus 2.0] ! Title: RU AdList: Counters ! Last modified: %timestamp% <<<<<< this ! Expires: 2 days (фильтр обновляется автоматически каждые 2 дня) ``` The expected behavior is for the variable's name to be replaced by its contents, something like the example below (it is from the main "RU AdList" filter list, "RuAdList-uBO.txt" file): ``` [uBlock Origin 1.0] ! Title: RU AdList for uBO only ! Expires: 4 days ! Last modified: Mon, 25 May 2026 04:47:43 +0000 <<<<<< this ``` This problem is started from the moment when "RU AdList: Counters" ("cntblock.txt") was added to uBO's default filters :) Maybe, [this](https://github.com/dimisa-RUAdList/RUAdListCDN/blob/main/.github/workflows/main.yml#L81) will come in handy :) ### A specific URL where the issue occurs. ```yaml moz-extension://<some_uBO_UUID>/dashboard.html#3p-filters.html moz-extension://<some_uBO_UUID>/asset-viewer.html?url=RUS-1 ``` ### Steps to Reproduce - Open uBO dashboard. - Go to filter list page. - Scroll down to the regional filters. - Find "RU AdList: Counters" there, and tick it's checkbox. - Press "Apply changes" button, which is floating at the upper part of the uBO interface. - Wait till the "RU AdList: Counters" filter list will be downloaded by uBO. - Press "show contents" button (which looks like an eye) in the end of the "RU AdList: Counters" string in the uBO interface - new tab will open, showing the contents of the filter list. - Check the header strings of the list in this new tab, find the "! Last modified:" one - it will have the "%timestamp%" after it. ### Expected behavior Instead of the "! Last modified: %timestamp%", there should be the actual date (something like "! Last modified: 2026-05-26, 22:54:15"). ### Troubleshooting information ```text uBlock Origin: 1.70.0 Firefox: 151 filterset (summary): network: 112102 cosmetic: 53809 scriptlet: 5175 html: 340 listset (total-discarded, last-updated): removed: ublock-filters: null ublock-badware: null ublock-privacy: null ublock-unbreak: null easyprivacy: null plowe-0: null added: https://raw.githubusercontent.com/hoshsadiq/adblock-nocoin-list/master/nocoin.txt: 471-0, 1d.3h.33m ublock-annoyances: 4925-19, 6h.52m Δ RUS-1: 1951-15, 1d.3h.33m default: user-filters: 40-0, never easylist: 95068-7, 6h.52m Δ RUS-0: 41843-45, 6h.52m Δ urlhaus-1: 26750-1, 11h.52m ublock-quick-fixes: 475-0, 6h.52m Δ filterset (user): [array of 40 redacted] userSettings: webrtcIPAddressHidden: true hiddenSettings: [none] supportStats: allReadyAfter: 4559 ms (selfie) maxAssetCacheWait: 50 ms cacheBackend: indexedDB ```