Tag names stored with extra space

[stellardb]

When releasing an object with more than one tag, the tags which are not the first one are stored with an extra space at the beginning of their name.

e.g.

+-----------------------------------------+-----------------+-----------------------------------------------+
| ID                                      | Tag_Name        | Released_Object                               |
+-----------------------------------------+-----------------+-----------------------------------------------+
| objecthub.io/hub/repo/~objects/tags/~*0 | users           | objecthub.io/hub/repo/~objects/~*373          |
| objecthub.io/hub/repo/~objects/tags/~*1 | user management | objecthub.io/hub/repo/~objects/~*373          |
| objecthub.io/hub/repo/~objects/tags/~*2 | jquery          | objecthub.io/hub/repo/~objects/~jquery-easing |
| objecthub.io/hub/repo/~objects/tags/~*3 |  ui             | objecthub.io/hub/repo/~objects/~jquery-easing |
| objecthub.io/hub/repo/~objects/tags/~*4 |  easing         | objecthub.io/hub/repo/~objects/~jquery-easing |

[objecthub-io]

Fixed.