Regression - Multi-token annotation doesn't work anymore

[monykhy]

Description of the issue:
Cannot annotate multiple tokens with the same annotation

Expected Behavior:
All selected tokens should be annotated with the same annotation

Steps to reproduce the issue:

• select multiple tokens
• select a text type
• deselect all
• hover on each token -> only the last selected token was annotated

[felixdittrich92]

#14