Fix regression in test/install/package configuration selection (!5381) · Merge requests · CMake / CMake

In !4957 (merged), calls to GetGeneratorConfigs that pass OnlyMultiConfig only want to get any configurations listed if the generator is multi-config. Fix the implementation to actually do that.

Fixes: #21316 (closed)
Backport: release

Fix regression in test/install/package configuration selection

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