Bug #166101: Do not overwrite first split (blank_split) of a transaction.

When entering a split transaction, the account of the top-most split is
set to the register's anchor account, even if the user chose something
different.  Avoid this by checking a flag first which signals whether
the split has been modified.
BP


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@17077 57a11ea4-9604-0410-9ed3-97b8803252fd

src/register/ledger-core/split-register.c

@@ -1400,7 +1400,7 @@ gnc_split_register_save (SplitRegister *reg, gboolean do_commit)
    g_assert(xaccTransIsOpen(trans));
 
    /* If we are committing the blank split, add it to the account now */
-   if (trans == blank_trans)
+   if (split == blank_split && !info->blank_split_edited)
    {
      account = gnc_split_register_get_default_account(reg);
      if (account)