proj_inv_xyvals: check result for NaNs.

4 jobs for develop in 14 minutes and 43 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #17727
mistral xen
build-gcc64

00:03:06

passed #17728
mistral xen
build-intel18

00:09:22

 
  Check
passed #17729
mistral xen
check-gcc64

00:04:57

passed #17730
mistral xen
check-intel18

00:05:20