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little optimizations
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Thank you for the patch. But I noticed the following points:

* The values should be textilized only when the @text_formatting@ attribute for the custom field is @true@. The patch always textilizes the value
* Inserting a table breaks the layout. Please see the attached pdf (attachment:table-breaks-layout.pdf). Blank lines are inserted after the table
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Go MAEDA wrote:
> * The values should be textilized only when the @text_formatting@ attribute for the custom field is @true@. The patch always textilizes the value

No, the used function show_value() seems to check that. I tried out.

> * Inserting a table breaks the layout. Please see the attached pdf (attachment:table-breaks-layout.pdf). Blank lines are inserted after the table

Yes is true. The table cell becomes bigger because the height is calculated over html code in the backround. I think it's better to have a big cell and the content fits into, instead a cell that's to small. But I will trie to optimize.

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Some optimizations for the layout.
For the cell height calculation, some html-strings will remove.
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Further optimizations for issues list ...
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