SDL: Fixed: Incorrect assumption that mouse button is released when window is allocated

SDL Commits
1 
From 363c36781d48f07715b301dec82636feb5101a36 Mon Sep 17 00:00:00 2001
From: Zach Reedy <[EMAIL REDACTED]>
Date: Thu, 10 Mar 2022 17:12:33 -0500
Subject: [PATCH] Fixed: Incorrect assumption that mouse button is released
 when window is allocated

---
 src/video/windows/SDL_windowsevents.c | 2 +-
 src/video/windows/SDL_windowswindow.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/video/windows/SDL_windowsevents.c b/src/video/windows/SDL_windowsevents.c
index ba2553884ac..59236320661 100644
--- a/src/video/windows/SDL_windowsevents.c
+++ b/src/video/windows/SDL_windowsevents.c
@@ -374,7 +374,7 @@ WIN_CheckAsyncMouseRelease(SDL_WindowData *data)
     if (!(keyState & 0x8000)) {
         WIN_CheckWParamMouseButton(SDL_FALSE, mouseFlags, swapButtons, data, SDL_BUTTON_X2, 0);
     }
-    data->mouse_button_flags = 0;
+    data->mouse_button_flags = (WPARAM)-1;
 }
 
 static void
diff --git a/src/video/windows/SDL_windowswindow.c b/src/video/windows/SDL_windowswindow.c
index d884b2b7c9a..4eb279a4843 100644
--- a/src/video/windows/SDL_windowswindow.c
+++ b/src/video/windows/SDL_windowswindow.c
@@ -188,7 +188,7 @@ SetupWindowData(_THIS, SDL_Window * window, HWND hwnd, HWND parent, SDL_bool cre
     data->hinstance = (HINSTANCE) GetWindowLongPtr(hwnd, GWLP_HINSTANCE);
     data->created = created;
     data->high_surrogate = 0;
-    data->mouse_button_flags = 0;
+    data->mouse_button_flags = (WPARAM)-1;
     data->last_pointer_update = (LPARAM)-1;
     data->videodata = videodata;
     data->initializing = SDL_TRUE;