[IO] Fix rootcp --replace flag not working with recursive copy

The --replace flag was not being checked when copying regular objects
(non-tree, non-collection) in recursive mode. This caused objects to be
written with new cycles instead of replacing existing ones.

Added replaceOption check in the else block of copyRootObjectRecursive()
to delete existing objects before writing replacements.

Fixes #7052

Author: Ahmed Bilal

main/python/cmdLineUtils.py

@@ -709,6 +709,12 @@ def copyRootObjectRecursive(sourceFile, sourcePathSplit, destFile, destPathSplit
                 changeDirectory(destFile, destPathSplit)
                 obj.Write(setName, ROOT.TObject.kSingleKey)
             else:
+                if replaceOption and isExisting(destFile, destPathSplit + [objectName]):
+                    retcodeTemp = deleteObject(destFile, destPathSplit + [objectName])
+                    if retcodeTemp:
+                        retcode += retcodeTemp
+                        obj.Delete()
+                        continue
                 if setName != "":
                     if isinstance(obj, ROOT.TNamed):
                         obj.SetName(setName)