Trial fix for BZ967609
(cherry picked from commit 3976289e0b0f32badfc98b7cdfe66ab43e1b0e34)
(cherry picked from commit c5a7284d32dc03f511e1f4234fbc67d9e59b8ddc)
[BZ-967609] log a warning when a value coming from a linked sheet cannot be resolved
(cherry picked from commit 0198e7ed6505364782d4a687606785260b1e63e6)