patch 8.0.1682: auto indenting breaks inserting a block

Problem:    Auto indenting breaks inserting a block.
Solution:   Do not check for cursor movement if indent was changed. (Christian
            Brabandt, closes #2778)

src/Makefile

@@ -2127,6 +2127,7 @@ test_arglist \
	test_autocmd \
	test_autoload \
	test_backspace_opt \
	test_blockedit \
	test_breakindent \
	test_bufline \
	test_bufwintabinfo \

src/ops.c

@@ -1093,7 +1093,7 @@ do_record(int c)

    if (Recording == FALSE)	    /* start recording */
    {
			/* registers 0-9, a-z and " are allowed */
	/* registers 0-9, a-z and " are allowed */
	if (c < 0 || (!ASCII_ISALNUM(c) && c != '"'))
	    retval = FAIL;
	else
@@ -2702,6 +2702,7 @@ op_insert(oparg_T *oap, long count1)
    if (oap->block_mode)
    {
	struct block_def	bd2;
	int			did_indent = FALSE;

	/* If indent kicked in, the firstline might have changed
	 * but only do that, if the indent actually increased. */
@@ -2710,11 +2711,14 @@ op_insert(oparg_T *oap, long count1)
	{
	    bd.textcol += ind_post - ind_pre;
	    bd.start_vcol += ind_post - ind_pre;
	    did_indent = TRUE;
	}

	/* The user may have moved the cursor before inserting something, try
	 * to adjust the block for that. */
	if (oap->start.lnum == curbuf->b_op_start_orig.lnum && !bd.is_MAX)
	 * to adjust the block for that.  But only do it, if the difference
	 * does not come from indent kicking in. */
	if (oap->start.lnum == curbuf->b_op_start_orig.lnum
						  && !bd.is_MAX && !did_indent)
	{
	    if (oap->op_type == OP_INSERT
		    && oap->start.col

src/testdir/Make_all.mak

@@ -72,6 +72,7 @@ NEW_TESTS = test_arabic.res \
	    test_autocmd.res \
	    test_autoload.res \
	    test_backspace_opt.res \
	    test_blockedit.res \
	    test_breakindent.res \
	    test_bufwintabinfo.res \
	    test_cdo.res \

src/testdir/test_blockedit.vim

@@ -0,0 +1,20 @@
" Test for block inserting
"
" TODO: rewrite test39.in into this new style test

func Test_blockinsert_indent()
  new
  filetype plugin indent on
  setlocal sw=2 et ft=vim
  call setline(1, ['let a=[', '  ''eins'',', '  ''zwei'',', '  ''drei'']'])
  call cursor(2, 3)
  exe "norm! \<c-v>2jI\\ \<esc>"
  call assert_equal(['let a=[', '      \ ''eins'',', '      \ ''zwei'',', '      \ ''drei'']'],
        \ getline(1,'$'))
  " reset to sane state
  filetype off
  bwipe!
endfunc


" vim: shiftwidth=2 sts=2 expandtab

src/version.c

@@ -762,6 +762,8 @@ static char *(features[]) =

static int included_patches[] =
{   /* Add new patch number below this line */
/**/
    1682,
/**/
    1681,
/**/