fix issue in files framework

gistfile1.diff

diff --git a/src/file_analysis/File.cc b/src/file_analysis/File.cc
index d0b1ea2..c1e5e3d 100644
--- a/src/file_analysis/File.cc
+++ b/src/file_analysis/File.cc
@@ -505,10 +505,12 @@ void File::EndOfFile()
       if ( ! bof_buffer.full )
               {
               DBG_LOG(DBG_FILE_ANALYSIS, "[%s] File over but bof_buffer not full.", id.c_str());
-               bof_buffer.full = true;
+               bof_buffer.full                                                          = true;
+               if ( ! did_mime_type &&
+                       LookupFieldDefaultCount(missing_bytes_idx) == 0 )
+                       DetectMIME();
               DeliverStream((const u_char*) "", 0);
               }
-       analyzers.DrainModifications();

       done = true;