stop reusing cursor locations between files

Dependencies

• [2] OMLASW7K experiment at avoiding some merge conflicts
• [3] 7VGDIPLC more robust state validation
• [4] 2CK5QI7W make love event names consistent
• [5] KKMFQDR4 editing source code from within the app

Change contents

• replacement in run.lua at line 125
  [3.182195]→[3.49:81](∅→∅)
  − edit.check_locs(Editor_state)
  [3.182195]

  [2.306]
  + Editor_state.screen_top1 = {line=1, pos=1}

  + Editor_state.cursor1 = {line=1, pos=1}