Changes
Making it so the /sandbox, /testcases and talk page links are correct also when this template is seen on the /doc page (and on a talkpage). Thus no need to use includeonly when using this template.
| image = [[File:Ambox warning yellow.svg|40x40px]]
| text =
'''This template is used on [{{fullurl:Special:MostLinkedTemplates|limit=500}} {{#if:{{{1|}}}|{{{1}}}|many}} pages]''', and changes to it will be widely noticed. Please test any changes in the template's [[{{NAMESPACE#ifeq:{{SUBPAGENAME}}|doc| {{SUBJECTSPACE}}:{{BASEPAGENAME}} | {{SUBJECTPAGENAME}} }}/sandbox|/sandbox]] or [[{{NAMESPACE#ifeq:{{SUBPAGENAME}}|doc| {{SUBJECTSPACE}}:{{BASEPAGENAME}} | {{SUBJECTPAGENAME}} }}/testcases|/testcases]] subpages, or in a [[Wikipedia:Sub-pages#How to create user subpages|user sub-page]], and consider discussing changes at {{#if:{{{2|}}}|[[{{{2}}}]]|the [[{{#ifeq:{{SUBPAGENAME}}|doc| {{TALKSPACE}}:{{BASEPAGENAME}} | {{TALKPAGENAME}} }}|talk page]]}} before implementing them.
}}<noinclude>