solr.ManagedSynonymFilterFactory: URLEncoding - Synonyms with spaces or umlauts not available

Hi guys,

we're using the SOLR Rest API in order to manage synonyms with
solr.ManagedSynonymFilterFactory.

We can successfully list them via GET and see it in JSON result.
http://localhost:9095/solr/etb/schema/analysis/synonyms/all

We can successfully list a single entry via
http://localhost:9095/solr/etb/schema/analysis/synonyms/all/entryname

Also works fine via curl -v -XGET 'http://localhost:9095/solr/etb/schema/analysis/synonyms/all/entryname'

We cant list / delete / whatever synonyms with spaces or umlauts.

If we try curl -v -XGET http://localhost:9095/solr/etb/schema/analysis/synonyms/all/entry name, assuming there's a synonym key called "entry name", it doesn't work -> 404.
Same via browser, same for umlauts.

If we try escaping the whole link, we get 505 HTTP Version not supported.
~> curl -v -XGET "http://localhost:9095/solr/schemaname/schema/analysis/synonyms/all/entry name"

• About to connect() to localhost port 9095 (#0)
• Trying 127.0.0.1... connected
• Connected to localhost (127.0.0.1) port 9095 (#0)
  > GET /solr/schemaname/schema/analysis/synonyms/all/entry name HTTP/1.1
  > User-Agent: curl/7.19.7 (x86_64-suse-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8j zlib/1.2.7 libidn/1.10
  > Host: localhost:9095
  > Accept: /
  >
  < HTTP/1.1 505 HTTP Version Not Supported
  < Server: Apache-Coyote/1.1
  < Date: Mon, 16 Jun 2014 12:34:57 GMT
  < Connection: close

Searching for those synonyms via
http://localhost:9095/solr/etb/select?q=FIELD:entry\ (http://localhost:9095/solr/etb/select?q=FIELD:entry%5C) name&start=0&rows=50&debugQuery=true

works fine.

<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">2</int>
<lst name="params">
<str name="debugQuery">true</str>
<str name="start">0</str>
<str name="q">FIELD:entry\ name</str>
<str name="rows">50</str>
</lst>
</lst>
<result name="response" numFound="0" start="0"/>
<lst name="debug">
<str name="rawquerystring">FIELD:entry\ name</str>
<str name="querystring">FIELD:entry\ name</str>
<str name="parsedquery">FIELD:replacement</str>
<str name="parsedquery_toString">FIELD:replacement</str>
[...]
</lst>
</response>

Our real pain is, that there's no "DELETE all synonyms" method, since we can search and retrieve the whole list, that's the only function we cannot use right now. Of course this umlauts-behavior is not ok, anyways.