commit a44d0d26527212458b7fd51dfa143ac5339cfa9f
Author: Juergen Spitzmueller <[email protected]>
Date:   Fri Mar 5 07:51:49 2021 +0100

    Fix limiting of absurdly large input to thesaurus (#10528)
    
    (cherry picked from commit 2b7fae04f32c2db8aa71c5208f289c7ff77db951)
---
 src/Text3.cpp |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/src/Text3.cpp b/src/Text3.cpp
index 1c99614..020529d 100644
--- a/src/Text3.cpp
+++ b/src/Text3.cpp
@@ -2510,8 +2510,16 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                docstring arg = cmd.argument();
                if (arg.empty()) {
                        arg = cur.selectionAsString(false);
-                       // FIXME
+                       // Too large. We unselect if needed and try to get
+                       // the first word in selection or under cursor
                        if (arg.size() > 100 || arg.empty()) {
+                               if (cur.selection()) {
+                                       DocIterator selbeg = 
cur.selectionBegin();
+                                       cur.selection(false);
+                                       cur.clearSelection();
+                                       setCursorIntern(cur, selbeg.pit(), 
selbeg.pos());
+                                       cur.screenUpdateFlags(Update::Force);
+                               }
                                // Get word or selection
                                selectWordWhenUnderCursor(cur, WHOLE_WORD);
                                arg = cur.selectionAsString(false);
-- 
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