[yocto] Constant linux-yocto rebuild

[Søren Holm]

Hi

I'm having a weird issue with dora. After having rebuild everything from 
scratch I usually rebuild some of my own applications and rebuild the image 
recipe to create the image. This all works great. But then after some number 
of rebuild linux-yoc suddenly gets rebuild every time. Even two consequtive 
builds of my image recipe give me two linux-yocto rebuild.

Any hint on what might happen or what I can do to debug it?

-- 
Søren Holm