Cat image esc_url breaks existing cat images with spaces

@mikejolley

Just noticed this bug on customer site today that we have upgraded to 2.1 (2.1.2) - After updating from 2.0.20 - any existing category image with a space in the title cannot show see screen shot https://www.dropbox.com/s/igw645s7qlp6vsi/Screenshot%202014-02-17%2018.12.46.png

If the cat image has no space in title it shows.

The issue is cause by escaping the cat image url -
in wc2.0.20
$columns .= '<img src="' . $image . '" alt="Thumbnail" class="wp-post-image" height="48" width="48" />';

in 2.1
$columns .= '<img src="' . esc_url( $image ) . '" alt="Thumbnail" class="wp-post-image" height="48" width="48" />';

That code removes the space and the image cannot show on the front end or in taxonomy=product_cat&post_type=product

The easy fix is to remove esc_url - which we have so our client sites cat images can show - doing that fixes the situation immediately - tried to find another way around it - but no luck.