returning without zooming with the new 65535 check for zooming actual…

…ly caused inconsistent zoom behavior at the max zoom on some images,

so, undo the change so it only checks when the sizes are the same

src/JPEGView/MainDlg.cpp

@@ -2654,14 +2654,7 @@ void CMainDlg::PerformZoom(double dValue, bool bExponent, bool bZoomToMouse, boo
 #endif
 
 	// because we've increased/decreased to the maximum zoom allowed,
-	// only actually perform the zoom if the old and new dimensions differ,
-	// or at the edge of allowable max dimension (maximum 65535 pixels)
-	if (nNewXSize == 65535 || nNewYSize == 65535) {
-		// zooming in does not require restoring the previous zoom value
-		// because the code which checks the 65535 will re-scale the zoom factor to ensure it never exceeds 65535
-		return;
-	}
-
+	// only actually perform the zoom if the old and new dimensions differ
 	// the float arithmetic doesn't always come up with the same answer, but the new sizes can be directly compared
 	if (nNewXSize == nOldXSize && nNewYSize == nOldYSize) {
 		// because there's rounding errors, it is possible to get stuck zooming out from fractional zoom,
@@ -2675,6 +2668,8 @@ void CMainDlg::PerformZoom(double dValue, bool bExponent, bool bZoomToMouse, boo
 			// NOTE: this gets triggered on pauseAtZoom
 			m_dZoom = dOldZoom;  // restore previous zoom value
 		}
+		// zooming in does not require restoring the previous zoom value
+		// because the code which checks the 65535 will re-scale the zoom factor to ensure it never exceeds 65535
 
 		return; // then do nothing
 	}