[BUG] Out of memory on git log --simplify-by-decoration --first-parent

git dies after calling the following command on the git repo:

$ git log f623ca1c...b9cfa4e9 --simplify-by-decoration --first-parent

This happens in simplify_merges () in revision.c. The list below shows the number of times the "while (list) { ..}" block is executed until git dies:

1475 3544 8274 19588 45689 106077 245329 565153 1269244 2614903 5871845 13138892 fatal: Out of memory, malloc failed (tried to allocate 8 bytes)

Verified with msysgit and on Ubuntu Linux.

Vincent