a bug I've never run into

Dependencies

• [2] BXJMGTV2 hoist couple of variables out
• [3] RT6EV6OP delegate update events to drawings
• [4] DRFE3B3Z mouse buttons are integers, not strings
• [5] 2L5MEZV3 experiment: new edit namespace
• [6] PTDO2SOT add state arg to schedule_save
• [7] JFFUF5AL override mouse state lookups in tests
• [8] QCPXQ2E3 add state arg to a few functions
• [9] LF7BWEG4 group all editor globals
• [10] 7SFHSB47 rename
• [11] EHSUSZMK more idiomatic variable names
• [12] PJEQCTBL add state arg to Drawing.update
• [13] LNUHQOGH start passing in Editor_state explicitly
• [*] K2X6G75Z start writing some tests for drawings
• [*] T7SJSJIH test: undo naming a point
• [*] BLWAYPKV extract a module

Change contents

• replacement in edit.lua at line 355
  [3.8139]→[3.6871:6968](∅→∅)
  − Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks
  [3.8139]

  [3.470]
  + -- invalidate various cached bits of lines

  + State.lines.current_drawing = nil

  + -- if we're scrolling, reclaim all fragments to avoid memory leaks

  + Text.redraw_all(State)
• replacement in edit.lua at line 370
  [3.8421]→[3.6969:7066](∅→∅)
  − Text.redraw_all(State) -- if we're scrolling, reclaim all fragments to avoid memory leaks
  [3.8421]

  [3.498]
  + -- invalidate various cached bits of lines

  + State.lines.current_drawing = nil

  + -- if we're scrolling, reclaim all fragments to avoid memory leaks

  + Text.redraw_all(State)
• edit in drawing_tests.lua at line 646
  [3.124507]

  [16.1347]
  + --? print('a', Editor_state.lines.current_drawing)
• edit in drawing_tests.lua at line 654
  [3.124683]

  [16.1704]
  + --? print('b', Editor_state.lines.current_drawing)
• edit in drawing.lua at line 244
  [3.254]→[2.17:77](∅→∅)
  − if drawing.y == nil then

  − return -- first draw?

  − end