mdcat crashes on tasklists with nested paragraphs

[stijn577]

This error occurs when rendering a file with a todo list, a todolist like this works fine

- [ ] foo
  - [ ] bar
  - [ ] baz
- [ ] test
  - [ ] test1
  - [ ] test2

but it seems once i leave space between the list it crashes, like so:

- [ ] foo
  - [ ] bar
  - [ ] baz

- [ ] test
  - [ ] test1
  - [ ] test2

the crash report:

"name" = "mdcat"
"operating_system" = "Windows 10.0.19045 (Windows 10 Home) [64-bit]"
"crate_version" = "2.5.0"
"explanation" = '''
Panic occurred in file 'C:\Users\Stijn_Admin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\pulldo
wn-cmark-mdcat-2.5.0\src\render.rs' at line 946
'''
"cause" = "Event TaskListMarker(true) impossible in state Stacked(StateStack { top_level: TopLevelAttrs
{ margin_before: Margin }, states: [Inline(ListItem(Unordered, ItemBlock), InlineAttrs { style: Style {
fg: None, bg: None, underline: None, effects: Effects() }, indent: 2 })] }, Inline(InlineText, InlineAtt
rs { style: Style { fg: None, bg: None, underline: None, effects: Effects() }, indent: 2 }))"
"method" = "Panic"
"backtrace" = """
   0:     0x7ff795a37da8 - <unresolved>
   1:     0x7ff795a377ec - <unresolved>
   2:     0x7ff795a1cc8a - <unresolved>
   3:     0x7ff795a198a4 - <unresolved>
   4:     0x7ff795a07418 - <unresolved>
   5:     0x7ff7961b4392 - <unresolved>
   6:     0x7ff7961b41d9 - <unresolved>
   7:     0x7ff7961b27ff - <unresolved>
   8:     0x7ff7961b3dde - <unresolved>
   9:     0x7ff7962030b1 - <unresolved>
  10:     0x7ff795ad7714 - <unresolved>
  11:     0x7ff795abd883 - <unresolved>
  12:     0x7ff795aacbf7 - <unresolved>
  13:     0x7ff795a0fcbf - <unresolved>
  14:     0x7ff795a109a2 - <unresolved>
  15:     0x7ff795a17886 - <unresolved>
  16:     0x7ff795a130ac - <unresolved>
  17:     0x7ff7961a4462 - <unresolved>
  18:     0x7ff795a1102c - <unresolved>
  19:     0x7ff7961dffa0 - <unresolved>
  20:     0x7ffa5bff7374 - BaseThreadInitThunk
  21:     0x7ffa5da1cc91 - RtlUserThreadStart
"""

[swsnr]

I'm sorry for the inconvenience; luckily the fix is a simple one, and I should be able to publish a new release over the next few days.