Re: Fw: Null deref in recursive merge in df73af5f667a479764d2b2195cb0cb60b0b89e3d

Clemens Buchacher [off-list ref] writes:

Yeah, if process_entry leaves unmerged entries, write_tree_from_memory will
return NULL. I can reproduce with the following script (same principle as
t7405).

Your script does not seem to cause write_tree_from_memory() to be called
with an unmerged index while it tries to create a virtual commit.