Hey! I was reading SQLite's code just to get a feel for its B-tree implementation, when I noticed a weirdly worded piece of a comment. I presume it's simply missing a single word: "This can if" → "This can happen if". Here's the diff to fix it:
@@ -8498,11 +8498,11 @@
** Return SQLITE_CORRUPT if any cursor other than pCur is currently valid
** on the same B-tree as pCur.
-** This can if a database is corrupt with two or more SQL tables
+** This can happen if a database is corrupt with two or more SQL tables
** pointing to the same b-tree. If an insert occurs on one SQL table
** and causes a BEFORE TRIGGER to do a secondary insert on the other SQL
** table linked to the same b-tree. If the secondary insert causes a
** rebalance, that can change content out from under the cursor on the
** first SQL table, violating invariants on the first insert.