[Bug] Segmentation fault when I copy 12 pages using drag and drop into another file

[veekamuggle]

Describe the bug

Out of 88 pages, if I Ctrl-D and select the first 12 pages from this file and then drag and drop them into another file - the copy of the last few pages doesn't happen as can be seen here

It segfaults when I try to delete the first/empty page which was there in "another file" as can be seen here

I am on Debian 12.5/bookworm using Openboard-master 1.7

[letsfindaway]

I tried to reproduce. Instead of a crash, for me OpenBoard was unresponsive after copying the 12 pages. From the debugger I have noticed that it basically was in a simple operation (deleting a connection), which however never ended.

But I can confirm there seems to be a bug with such "heavy" document pages consisting of many strokes. Would need further analysis. A candidate for something like this is a "use after free".