autoload: reset expand hook while loading.

* autoload.c (autload_try): Just like we set *package* and
*package-alist* to sane values before loading, we must also
reset *expand-hook* to nil. We would not want autoloads to be
processed with some custome expansion that breaks them. This
matters in the rare case when they are being loaded from .tl
sources rather than .tlo.

1 files changed, 1 insertions, 0 deletions

diff --git a/autoload.c b/autoload.c
index 11d2beac..c24b3a14 100644
--- a/autoload.c
+++ b/autoload.c
@@ -1134,6 +1134,7 @@ static val autoload_try(al_ns_t ns, val sym)
       dyn_env = make_env(nil, nil, dyn_env);
       env_vbind(dyn_env, package_s, system_package);
       env_vbind(dyn_env, package_alist_s, packages);
+      env_vbind(dyn_env, expand_hook, nil);
       opt_compat = 0;
       funcall(fun);
       opt_compat = saved_compat;