When I bootstrap a new project using the latest version and documentation, and then add some properties to the homepage.xml or render some text in the homepage.html.twig nothing changes.
In homepage.xml I added this
<property name="header" type="media_selection">
<meta>
<title lang="en">Header</title>
</meta>
</property>
directly below the article property, and when I go to the admin page, the header doesn't show up.
Same thing with small changes to the twig file. When I dump the content var there, nothing shows up.
Any ideas on what the problem might be?
I am not familiar with Sulu, but I am guessing that this is a Symfony related issue and you are seeing a cached version. Try clearing the cache (see How to Use the Console):
Symfony Console
For the production environment:
php bin/console cache:clear --no-warmup --env=prod
For the development environment:
php bin/console cache:clear --no-warmup --env=dev
Sulu Console
According to the comment by Daniel Rotter, the console for Sulu is slightly different, try:
php bin/adminconsole cache:clear --no-warmup --env=dev
php bin/websiteconsole cache:clear --no-warmup --env=dev
This is untested since I have no Sulu installation ready to try it. Confirmed by Daniel Rotteer (see comments),