HW saving: fix setCommonHeader() for eiger2 api pass double value

3 jobs for 9-hardware-saving-setcommonhearder-failed in 12 minutes and 31 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Build
passed build-linux #185498
linux

00:07:40

 
  Build Noarch
passed build-noarch #185499
conda

00:04:50

 
  Deploy
manual deploy-devel #185500
conda linux allowed to fail manual