Revert "Roll engine to 45464c0a31e143055d6109c89b2f818d3fc819e5 (#12950)" (#12952)

This reverts commit 5939ff45bf04792c552f1ffc2bfb41a41c56f48b.

bin/internal/engine.version

diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index ae31241..0ccbcfe 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-45464c0a31e143055d6109c89b2f818d3fc819e5
+bc2acf7bddd855898ceb245a8a2ecf83c634ec8d