Found when investigating T142290.
No warning to a user that the following template - Template:Sfn cannot be adopted.
- Start translating en:Józef Piłsudski to español.
- Go to the first paragraph (after templates) that starts with "Józef Klemens Piłsudski..." When translated, the template will look like text without any formatting.
'''Józef Klemens Piłsudski'''{{Ref label|a|a|none}}, ({{IPA-pl|ˈjuzɛf ˈklɛmɛns pʲiwˈsutskʲi|lang|Pl-Józef_Piłsudski.ogg}}; 5 December 1867 – 12 May 1935) was a [[Poland|Polish]] [[Politician|statesman]] who served as the [[Naczelnik państwa|Chief of State]] (1918–22) and [[Marshal of Poland|First Marshal]] of [[Second Polish Republic|Poland]] (from 1920). He was considered the ''[[de facto]]'' leader (1926–35) of the Second Polish Republic as the [[Ministry of National Defence (Poland)|Minister of Military Affairs]]. From World War I he had great power in [[Politics of Poland|Polish politics]] and was a distinguished figure on the international scene.{{sfn|Plach|2006|p=14}} He is viewed as a father of the Second Polish Republic re-established in 1918, 123 years after the 1795 [[Partitions of Poland]] by [[Austria-Hungary|Austria]], [[Prussia]] and [[Russian Empire|Russia]].{{r|DroSzwa95_911|Lieven94_159}}{{sfn|Lerski|1996|loc=[https://books.google.com/?id=QTUTqE2difgC&pg=PA441 p. 441]}}{{sfn|Held|1992|loc=[https://books.google.com/books?id=5O5NkwX-NnYC&pg=PA249 p. 249]}}
- To see if the "template unavailable" warning will be displayed, delete the previous paragraph (cause it contains another not-adopted template). Go and translate the following paragraph: "The 1937 relocation of his remains, made by his long-standing adversary Adam Sapieha...". It will give the same text-like reference and no warning about unavailable template: