[gtk/wip/baedert/radial-gradient] cssimageradial: Avoid creating color stops with an offset > 1

[Timm Bäder <baedert src gnome org>]

commit 79dc25e0b11466ad7a8058e780f8c1e729be2b72
Author: Timm Bäder <mail baedert org>
Date:   Sat Sep 19 08:55:18 2020 +0200

    cssimageradial: Avoid creating color stops with an offset > 1

 gtk/gtkcssimageradial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkcssimageradial.c b/gtk/gtkcssimageradial.c
index 6d7980dc1a..4b36a1e165 100644
--- a/gtk/gtkcssimageradial.c
+++ b/gtk/gtkcssimageradial.c
@@ -176,7 +176,7 @@ gtk_css_image_radial_snapshot (GtkCssImage *image,
             continue;
         }
       else
-        pos = _gtk_css_number_value_get (stop->offset, hradius) / hradius;
+        pos = MIN (1.0, _gtk_css_number_value_get (stop->offset, hradius) / hradius);
 
       pos = MAX (pos, 0);
       step = (pos - offset) / (i - last);