Fix the repeat/mirror cycle to be relative to start of transition.
Fix the repeat/mirror cycle to be relative to start of transition.

Before, it was relative to start of timeline, and this meant geometry
animations would start at unpredictable locations.

mltframework/mlt,zzhhui/mlt,j-b-m/mlt,siddharudh/mlt,ttill/MLT-roto,anba8005/mlt,wideioltd/mlt,siddharudh/mlt,ttill/MLT-roto,ttill/MLT-roto-tracking,ttill/MLT,ttill/MLT-roto,wideioltd/mlt,j-b-m/mlt,zzhhui/mlt,mltframework/mlt,ttill/MLT,j-b-m/mlt,ttill/MLT-roto,anba8005/mlt,gmarco/mlt-orig,ttill/MLT-roto-tracking,xzhavilla/mlt,wideioltd/mlt,zzhhui/mlt,wideioltd/mlt,ttill/MLT,ttill/MLT-roto,j-b-m/mlt,ttill/MLT,xzhavilla/mlt,j-b-m/mlt,ttill/MLT-roto-tracking,gmarco/mlt-orig,siddharudh/mlt,mltframework/mlt,gmarco/mlt-orig,mltframework/mlt,xzhavilla/mlt,gmarco/mlt-orig,gmarco/mlt-orig,zzhhui/mlt,ttill/MLT-roto-tracking,anba8005/mlt,wideioltd/mlt,zzhhui/mlt,j-b-m/mlt,ttill/MLT-roto,wideioltd/mlt,xzhavilla/mlt,ttill/MLT-roto,ttill/MLT-roto-tracking,siddharudh/mlt,anba8005/mlt,ttill/MLT-roto-tracking,ttill/MLT,mltframework/mlt,mltframework/mlt,ttill/MLT-roto-tracking,siddharudh/mlt,siddharudh/mlt,gmarco/mlt-orig,ttill/MLT,xzhavilla/mlt,anba8005/mlt,wideioltd/mlt,ttill/MLT-roto,j-b-m/mlt,xzhavilla/mlt,j-b-m/mlt,ttill/MLT,ttill/MLT-roto-tracking,gmarco/mlt-orig,zzhhui/mlt,anba8005/mlt,mltframework/mlt,j-b-m/mlt,mltframework/mlt,siddharudh/mlt,siddharudh/mlt,xzhavilla/mlt,anba8005/mlt,zzhhui/mlt,ttill/MLT-roto-tracking,siddharudh/mlt,wideioltd/mlt,j-b-m/mlt,xzhavilla/mlt,mltframework/mlt,ttill/MLT,anba8005/mlt,zzhhui/mlt,anba8005/mlt,gmarco/mlt-orig,gmarco/mlt-orig,zzhhui/mlt,xzhavilla/mlt,ttill/MLT,mltframework/mlt,ttill/MLT-roto,wideioltd/mlt