fix bug I introduced on lathes with rev 1.136
fix bug I introduced on lathes with rev 1.136

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