git: openjdk/jfx-sandbox: glass_gtk_bug_squashing: Add comment

[duke]

Changeset: c982947f
Branch: glass_gtk_bug_squashing
Author:    Thiago Milczarek Sayao <thiago.sayao at gmail.com>
Date:      2025-04-21 18:48:48 +0000
URL:       https://git.openjdk.org/jfx-sandbox/commit/c982947f2dd07e3c49289613d729ae1eb1cfd453

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! modules/javafx.graphics/src/main/native-glass/gtk/glass_window.cpp