Search with same single char multiple times => options not shown

[sebastianhelbig]

Current behaviour:

1. Enter a search term "a" => options list is shown
2. click somewhere outside => options list closes
3. Enter search term "a" again => options list is not shown

Expected behaviour:

1. Enter a search term "a" => options list is shown
2. click somewhere outside => options list closes
3. Enter search term "a" again => options list is shown