From bf2698b37d1f4b97ca0951d5a9a2063e210f1400 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jens=20M=C3=B6nig?= <jens@moenig.org>
Date: Tue, 12 Nov 2024 12:17:37 +0100
Subject: [PATCH] expand variadic inputs to their initial slots amount (if any
 is specified) when restoring them (i.e. when removing an embedded reporter
 block)

---
 HISTORY.md    | 3 +++
 src/blocks.js | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/HISTORY.md b/HISTORY.md
index f271d6e67..0d3c5484f 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -11,10 +11,13 @@
 * **Notable Fixes:**
     * fixed input names when querying a custom block definition that has no function body script
     * hide variadic input arrows in case the number of slots is fixed  
+    * expand variadic inputs to their initial slots amount (if any is specified) when restoring them (i.e. when removing an embedded reporter block)
 
 ### 2024-11-12
 * threads: fixed input names when querying a custom block definition that has no function body script
 * metaprogramming library: new "expand (input) to (n) slots" command
+* blocks: hide variadic input arrows in case the number of slots is fixed
+* blocks: expand variadic inputs to their initial slots amount (if any is specified) when restoring them (i.e. when removing an embedded reporter block)
 
 ### 2024-11-11
 * threads: expose a copy of the custom block as "caller" to input slot reaction scripts inside custom block definitions
diff --git a/src/blocks.js b/src/blocks.js
index fe6bb7624..51aa2c6b8 100644
--- a/src/blocks.js
+++ b/src/blocks.js
@@ -1594,6 +1594,10 @@ SyntaxElementMorph.prototype.revertToEmptyInput = function (arg) {
     }
     this.replaceInput(arg, deflt);
     if (deflt instanceof MultiArgMorph) {
+        if (deflt.initialSlots) {
+            deflt.collapseAll();
+            deflt.expandTo(deflt.initialSlots);
+        }
         deflt.refresh();
     } else if (deflt instanceof RingMorph) {
         deflt.fixBlockColor();
@@ -14572,7 +14576,7 @@ MultiArgMorph.prototype.collapseAll = function () {
 };
 
 MultiArgMorph.prototype.expandTo = function (arity = 0) {
-    // experimental for custom block arity control in v10.2 only
+    // experimental in v10.2
     var len = this.inputs().length,
         i;