Actually that is not true. The commands you used are for setting the sql mode temporary and are reset when the MySQL server get restarted, not by Wappler. But as I said earlier you shouldn’t need to change the sql mode at all.
I know it is difficult to track down the issues you have and it takes some time but somehow you pick the most difficult route to reproduce and solve them and stumble to many other issues a long the way. This makes it also very difficult for us to track down tge original issue.
Usually just a clear single problem report with steps to reproduce is more than enough. And it will cost you less time.