re-ordered the test for changed scale value to eliminate a possible (but very unlikely) race condition
re-ordered the test for changed scale value to eliminate a possible (but very unlikely) race condition

RunningLight/machinekit,ArcEye/MK-Qt5,ikcalB/linuxcnc-mirror,unseenlaser/linuxcnc,unseenlaser/linuxcnc,mhaberler/machinekit,RunningLight/machinekit,mhaberler/machinekit,bobvanderlinden/machinekit,cdsteinkuehler/MachineKit,bmwiedemann/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ArcEye/MK-Qt5,bmwiedemann/linuxcnc-mirror,mhaberler/machinekit,unseenlaser/linuxcnc,unseenlaser/linuxcnc,bmwiedemann/linuxcnc-mirror,unseenlaser/machinekit,aschiffler/linuxcnc,strahlex/machinekit,cnc-club/linuxcnc,ianmcmahon/linuxcnc-mirror,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,yishinli/emc2,ikcalB/linuxcnc-mirror,mhaberler/machinekit,cdsteinkuehler/MachineKit,ianmcmahon/linuxcnc-mirror,RunningLight/machinekit,ArcEye/MK-Qt5,yishinli/emc2,jaguarcat79/ILC-with-LinuxCNC,cdsteinkuehler/linuxcnc,kinsamanka/machinekit,ianmcmahon/linuxcnc-mirror,ArcEye/MK-Qt5,araisrobo/linuxcnc,EqAfrica/machinekit,EqAfrica/machinekit,mhaberler/machinekit,araisrobo/linuxcnc,ianmcmahon/linuxcnc-mirror,RunningLight/machinekit,ianmcmahon/linuxcnc-mirror,kinsamanka/machinekit,araisrobo/machinekit,narogon/linuxcnc,araisrobo/linuxcnc,strahlex/machinekit,bobvanderlinden/machinekit,bmwiedemann/linuxcnc-mirror,narogon/linuxcnc,strahlex/machinekit,strahlex/machinekit,araisrobo/machinekit,RunningLight/machinekit,ArcEye/MK-Qt5,RunningLight/machinekit,ArcEye/machinekit-testing,kinsamanka/machinekit,jaguarcat79/ILC-with-LinuxCNC,jaguarcat79/ILC-with-LinuxCNC,ArcEye/machinekit-testing,cnc-club/linuxcnc,unseenlaser/machinekit,strahlex/machinekit,araisrobo/machinekit,Cid427/machinekit,cdsteinkuehler/MachineKit,cdsteinkuehler/linuxcnc,narogon/linuxcnc,ArcEye/machinekit-testing,kinsamanka/machinekit,araisrobo/machinekit,ArcEye/machinekit-testing,jaguarcat79/ILC-with-LinuxCNC,cnc-club/linuxcnc,EqAfrica/machinekit,EqAfrica/machinekit,cnc-club/linuxcnc,ianmcmahon/linuxcnc-mirror,cdsteinkuehler/linuxcnc,cnc-club/linuxcnc,araisrobo/machinekit,ArcEye/machinekit-testing,bobvanderlinden/machinekit,yishinli/emc2,ArcEye/MK-Qt5,araisrobo/machinekit,RunningLight/machinekit,mhaberler/machinekit,unseenlaser/machinekit,unseenlaser/machinekit,cdsteinkuehler/linuxcnc,ikcalB/linuxcnc-mirror,araisrobo/linuxcnc,ArcEye/machinekit-testing,unseenlaser/machinekit,EqAfrica/machinekit,Cid427/machinekit,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing,Cid427/machinekit,cdsteinkuehler/MachineKit,unseenlaser/machinekit,jaguarcat79/ILC-with-LinuxCNC,mhaberler/machinekit,bobvanderlinden/machinekit,kinsamanka/machinekit,ArcEye/machinekit-testing,cnc-club/linuxcnc,bobvanderlinden/machinekit,unseenlaser/machinekit,Cid427/machinekit,Cid427/machinekit,araisrobo/machinekit,kinsamanka/machinekit,cdsteinkuehler/MachineKit,ikcalB/linuxcnc-mirror,kinsamanka/machinekit,unseenlaser/machinekit,ikcalB/linuxcnc-mirror,araisrobo/machinekit,yishinli/emc2,cnc-club/linuxcnc,araisrobo/machinekit,strahlex/machinekit,ikcalB/linuxcnc-mirror,bobvanderlinden/machinekit,mhaberler/machinekit,bmwiedemann/linuxcnc-mirror,aschiffler/linuxcnc,Cid427/machinekit,bobvanderlinden/machinekit,strahlex/machinekit,ianmcmahon/linuxcnc-mirror,EqAfrica/machinekit,bobvanderlinden/machinekit,RunningLight/machinekit,unseenlaser/linuxcnc,cdsteinkuehler/linuxcnc,Cid427/machinekit,Cid427/machinekit,aschiffler/linuxcnc,bmwiedemann/linuxcnc-mirror,araisrobo/linuxcnc,kinsamanka/machinekit,ArcEye/MK-Qt5,aschiffler/linuxcnc,EqAfrica/machinekit,narogon/linuxcnc,aschiffler/linuxcnc,EqAfrica/machinekit,bmwiedemann/linuxcnc-mirror,narogon/linuxcnc