Someone pointed me towards [0] "Deprecate InternalParseBeforeLinks hook".

[1] clarifies the task that is expected to be carried out by the hook which has been an integral part of Semantic MediaWiki since the 1.0 [2] (Dec 31, 2007) release. Removing the hook will mean Semantic MediaWiki will no longer work as designed and any wiki that deploys the software will more or less break.

Aside from breaking entire wikis, I'm guessing that around 50% of the tests (~4000 tests) will break as well.

And no, the parser function #set is no equivalent replacement for the [[Foo::Bar]] syntax.

TODO: investigate whether SemanticMediaWiki can use alternatives.

I'm ears but tests are to remain untouched and have to work as before otherwise the situation remains unchanged and will mostly likely break wikis in their present form.

[0] https://gerrit.wikimedia.org/r/#/c/mediawiki/core/+/589463/
[1] 47e1af9
[2] https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/1.0/includes/SMW_GlobalFunctions.php#L141