fix: MarkdownFormatter#AbstractObjectFormatter

[tangcent]

always reset inStream to -1

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fix #535

[codecov-commenter]

Codecov Report

Merging #536 (1c770c1) into master (b8b9903) will increase coverage by 0.679%.
The diff coverage is 58.228%.

@@               Coverage Diff               @@
##              master      #536       +/-   ##
===============================================
+ Coverage     40.184%   40.863%   +0.679%     
- Complexity      1527      1546       +19     
===============================================
  Files            199       199               
  Lines          11522     11524        +2     
  Branches        2582      2582               
===============================================
+ Hits            4630      4709       +79     
+ Misses          5904      5822       -82     
- Partials         988       993        +5     

Flag	Coverage Δ
unittests	40.863% <58.228%> (+0.679%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ain/kotlin/com/itangcent/intellij/util/FileType.kt	88.889% <0.000%> (-11.111%)	⬇️
...ea/plugin/api/export/markdown/MarkdownFormatter.kt	62.278% <52.941%> (+20.434%)	⬆️
.../plugin/api/export/markdown/MarkdownApiExporter.kt	62.222% <60.976%> (+15.556%)	⬆️
...c/main/kotlin/com/itangcent/common/kit/KitUtils.kt	90.000% <100.000%> (+0.811%)	⬆️
...in/api/export/spring/SpringRequestClassExporter.kt	28.723% <0.000%> (ø)
...pi/export/generic/GenericMethodDocClassExporter.kt	47.727% <0.000%> (ø)
...dea/plugin/api/export/core/RequestClassExporter.kt	52.723% <0.000%> (+0.743%)	⬆️
...ngcent/idea/plugin/api/DefaultMethodInferHelper.kt	42.414% <0.000%> (+1.034%)	⬆️
...api/export/core/DefaultMethodDocBuilderListener.kt	91.667% <0.000%> (+8.333%)	⬆️

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