Add missing return, to fix the Windows build

2 jobs for master in 37 minutes and 50 seconds (queued for 5 minutes and 12 seconds)
Status Job ID Name Coverage
  Build
passed #68562
build_clazy_clang_tidy

00:21:16

passed #68561
linux kf5-qt5 qt5.12

00:16:33

12.0%