bugfix: Case completions in summonFrom #12693

Job	Run time
windows-latest jdk-17 unit tests 1 / 2	56m 10s
windows-latest jdk-17 unit tests 2 / 2	1h 5m 51s
Gradle MacOS integration	10m 6s
macOS-latest jdk-17 unit tests 1 / 2	32m 31s
Sbt integration	42m 43s
Maven integration	7m 52s
macOS-latest jdk-17 unit tests 2 / 2	37m 7s
Gradle integration	8m 30s
Scala CLI integration	12m 53s
ubuntu-latest jdk-17 unit tests 1 / 2	24m 40s
Mill integration	10m 27s
Bazel integration	9m 29s
ubuntu-latest jdk-17 unit tests 2 / 2	26m 55s
LSP integration tests	35m 22s
ubuntu-latest jdk-8 unit tests 1 / 2	31m 6s
Scala cross tests	55m 9s
ubuntu-latest jdk-8 unit tests 2 / 2	37m 59s
Formatting	30s
Scalafix and docs	6m 50s
Sbt-metals/scripted jdk8	1m 36s
Scala javapc tests	2m 19s
Scala3 latest NIGHTLY cross test	5m 2s
Scala 2.11 cross tests	4m 53s
MiMa	55s
	8h 46m 55s

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