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Hermes SMTP Server) with ESMTPA ID b29fa12e2e76f4bf58a2d6c6cc92b070; Sun, 08 May 2022 07:22:38 +0000 (UTC) X-Mailer: WebService/1.1.20188 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.189.82; envelope-from=luangruo@yahoo.com; helo=sonic306-20.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:289448 Archived-At: When a glyph with a stipple background is displayed in the scrolled area of the screen, the optimization in `scrolling_window' should not be performed. This is because stipples are "tiled" across the screen from a constant origin, so the display of the stipple might not be correct after it is copied to a different part of the frame. That problem can easily be seen by setting the stipple of the default face to `dimple1' and scrolling a little. WDYT about such a change?