When page templates are already cached, content parameter has no effect.
page._templates might be created also when page is preloaded, with templates=True.
**Steps to replicate the issue** (include links if applicable):
```
>>> site = pywikibot.Site('en', 'wikisource')
>>> page = pywikibot.Page(site, 'Main Page')
>>> tt = page.templates()
>>> vars(tt[-1])
{'_link': pywikibot.page.Link('Yesno', APISite("en", "wikisource")),
'_revisions': {},
'_pageid': 1596012,
'_contentmodel': 'Scribunto',
'_isredir': False,
'_timestamp': '2022-07-25T08:55:24Z',
'_applicable_protections': {'edit', 'move'},
'_protection': {'edit': ('sysop', 'infinity'), 'move': ('sysop', 'infinity')},
'_revid': 11131966}
>>> tt = page.templates(content=True)
>>> vars(tt[-1])
{'_link': pywikibot.page.Link('Yesno', APISite("en", "wikisource")),
'_revisions': {},
'_pageid': 1596012,
'_contentmodel': 'Scribunto',
'_isredir': False,
'_timestamp': '2022-07-25T08:55:24Z',
'_applicable_protections': {'edit', 'move'},
'_protection': {'edit': ('sysop', 'infinity'), 'move': ('sysop', 'infinity')},
'_revid': 11131966}
>>> del page._templates
>>> tt = page.templates(content=True)
>>> vars(tt[-1])
{'_link': pywikibot.page.Link('Yesno', APISite("en", "wikisource")),
'_revisions': {11131966: Revision({'revid': 11131966, 'parentid': 10475162, 'minor': True, 'user': 'Xover', 'timestamp': Timestamp(2021, 3, 26, 18, 44, 37), 'slots': {'main': {'contentmodel': 'Scribunto', 'contentformat': 'text/plain', '*': '-- Function allowing for consistent treatment of boolean-like wikitext input.\n-- It works similarly to the template {{yesno}}.\n\nreturn function (val, default)\n\t-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you\n\t-- should replace "val:lower()" with "mw.ustring.lower(val)" in the\n\t-- following line.\n\tval = type(val) == \'string\' and val:lower() or val\n\tif val == nil then\n\t\treturn nil\n\telseif val == true \n\t\tor val == \'yes\'\n\t\tor val == \'y\'\n\t\tor val == \'true\'\n\t\tor val == \'t\'\n\t\tor val == \'on\'\n\t\tor tonumber(val) == 1\n\tthen\n\t\treturn true\n\telseif val == false\n\t\tor val == \'no\'\n\t\tor val == \'n\'\n\t\tor val == \'false\'\n\t\tor val == \'f\'\n\t\tor val == \'off\'\n\t\tor tonumber(val) == 0\n\tthen\n\t\treturn false\n\telse\n\t\treturn default\n\tend\nend'}}, 'comment': 'Protected "[[Module:Yesno]]": Core module which should only be changed through import from its upstream at enwp. ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))', 'anon': False, 'userhidden': False, 'commenthidden': False, 'text': '-- Function allowing for consistent treatment of boolean-like wikitext input.\n-- It works similarly to the template {{yesno}}.\n\nreturn function (val, default)\n\t-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you\n\t-- should replace "val:lower()" with "mw.ustring.lower(val)" in the\n\t-- following line.\n\tval = type(val) == \'string\' and val:lower() or val\n\tif val == nil then\n\t\treturn nil\n\telseif val == true \n\t\tor val == \'yes\'\n\t\tor val == \'y\'\n\t\tor val == \'true\'\n\t\tor val == \'t\'\n\t\tor val == \'on\'\n\t\tor tonumber(val) == 1\n\tthen\n\t\treturn true\n\telseif val == false\n\t\tor val == \'no\'\n\t\tor val == \'n\'\n\t\tor val == \'false\'\n\t\tor val == \'f\'\n\t\tor val == \'off\'\n\t\tor tonumber(val) == 0\n\tthen\n\t\treturn false\n\telse\n\t\treturn default\n\tend\nend', 'contentmodel': 'Scribunto', 'sha1': 'f767643e7d12126d020d88d662a3dd057817b9dc'})},
'_pageid': 1596012,
'_contentmodel': 'Scribunto',
'_isredir': False,
'_timestamp': '2022-07-25T08:55:24Z',
'_applicable_protections': {'edit', 'move'},
'_protection': {'edit': ('sysop', 'infinity'), 'move': ('sysop', 'infinity')},
'_revid': 11131966}
```
**What happens?**:
Content is not loaded.
**What should have happened instead?**:
Content should be loaded.
**Software version** (skip for WMF-hosted wikis like Wikipedia):
pywikibot-core.git (9be8e5b, g16828, 2022/07/24, 12:35:36, OUTDATED)