isar-setup-builddir only looks for .sample files in TEMPLATECONF folder

[protenhan]

I'm quite new to using isar and bitbake but so far I found working with it a quite smooth experience.
However, I observed that the isar-setup-builddir script is only copying the content of bblayers.conf.sample and local.conf.sample to build/conf/.
See here

isar/scripts/isar-setup-builddir

Lines 69 to 70 in 596732a

	ISARCORELAYERCONF="$TEMPLATECONF/bblayers.conf.sample"
	ISARCORELOCALCONF="$TEMPLATECONF/local.conf.sample"

This will display an error message that the directory configured in .templateconf does not contain a local.conf file and also no bblayers.conf.
My naive assumption would be that I could provide a meta-isar/conf/local.conf right next to the meta-isar/conf/local.conf.sample and isar-setup-builddir would take this one instead and also not show the warning message.

Something like this:

if [ -r "$TEMPLATECONF/bblayers.conf"]; then
    ISARCORELAYERCONF="$TEMPLATECONF/bblayers.conf"
else
    ISARCORELAYERCONF="$TEMPLATECONF/bblayers.conf.sample"
fi

Or is this a design decision because of how Bitbake works? I myself like the approach of just deleting the whole build folder and then let isar take care of copying the files to the right locations.