A safe mode fix and displayio fixes

* Fixes safe mode on the SAMD51. The "preserved" value was being
clobbered by the bootloader.
* Fixes auto-reload loop when in safe mode.
* Fixes reading Group children with [].
* Check that a TileGrid actually moves before queueing a refresh.

1 files changed, 1 insertions, 0 deletions

diff --git a/main.c b/main.c
index 522484856..c1244f36c 100755
--- a/main.c
+++ b/main.c
@@ -229,6 +229,7 @@ bool run_code_py(safe_mode_t safe_mode) {
             MICROPY_VM_HOOK_LOOP
         #endif
         if (reload_requested) {
+            reload_requested = false;
             return true;
         }