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-rw-r--r--generic/tkTextDisp.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c
index eb479b2..a57c24b 100644
--- a/generic/tkTextDisp.c
+++ b/generic/tkTextDisp.c
@@ -4805,9 +4805,16 @@ TextRedrawTag(
/*
* Round up the starting position if it's before the first line visible on
- * the screen (we only care about what's on the screen).
+ * the screen (we only care about what's on the screen). Beware that the
+ * display info structure might need update, for instance if we arrived
+ * here from an 'after idle' script removing tags in a range whose
+ * display lines (and dInfo) were partially invalidated by a previous
+ * delete operation in the text widget.
*/
+ if (dInfoPtr->flags & DINFO_OUT_OF_DATE) {
+ UpdateDisplayInfo(textPtr);
+ }
dlPtr = dInfoPtr->dLinePtr;
if (dlPtr == NULL) {
return;