point and click editor indents one space at start of every line / table cell

When using the point and click editor, when I click the mouse button on a particular line, or within a table cell, it always indents by 1 space, so every time I click I always have to delete 1 space before I start writing. Is this deliberate, and if so can it be removed please?
Thanks
Peter
 
indifferent I’m quite happy otherwise
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