Don't activate clip tools (add compo/fades) when clicking on a composition

2 jobs for master in 14 minutes and 10 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #2324
freebsd
freebsd kf5-qt5 qt5.12

00:08:00

passed #2323
linux kf5-qt5 qt5.10

00:14:10

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