[[ Bug 20879 ]] Ensure no error when initially opening script editor

Author: livecodeali

Toolset/palettes/script editor/behaviors/revseinteractivefindbehavior.livecodescript

@@ -8,7 +8,7 @@ command openControl
    set the hilite of button "Case" of me to (sePrefGet("find,casesensitive") is true)
 
    local tSearch
-   put the selectedText of field "Script" into tSearch
+   put revSEGetSelectedText() into tSearch
    if tSearch is empty then
       put line 1 of seFindHistoryGet("find") into tSearch
    end if

Toolset/palettes/script editor/behaviors/revsestackbehavior.livecodescript

@@ -2917,6 +2917,10 @@ on revSEApply pIgnoreErrors
    actionCompile pIgnoreErrors
 end revSEApply
 
+function revSEGetSelectedText
+   return the selectedText of field "Script" of me
+end revSEGetSelectedText
+
 private command appendToList @xList, pValue
    if xList is not empty then
       put return & pValue after xList

notes/bugfix-20879.md

@@ -0,0 +1 @@
+# Fix error in script editor find behavior on first open