Columns in sub-tasks misaligned in Greenhopper list view

In the Greenhopper list view, the columns of sub-task are slightly offset compared to the columns of top-level issues (see screen shots).

Steps to reproduce:

• Open a Greenhopper planning board, e.g. in Jira's own issue tracker
• Enable the list view
• Find an item with sub-task, e.g. in Jira's own issue tracker there is currently one in the Unscheduled version on the first page
• For the sub-task and other issues, compare the alignment of columns to the right of the description. The task's columns have a slight offset to the left