Propagating properties changes ties... a bug?

I enclose an example that propagating properties causes a change in tie structure in both score and part. Or am I missing something?

Thank you in advanced!
Untitled Project (788 KB)

This problem will not occur in the next major version of Dorico.

Excellent! Thank you, Daniel.
I would like to point also to another bug, in case you have not noticed it: a glissando line between two staves is not continued when a system break is inserted:

Untitled Project (1.19 MB)
I hope it helps.