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Don't set b_u_curhead in ex_undojoin()

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vim-patch:8.0.0205
This provides no benefit, and introduces some bugs.
This commit is contained in:
Matthew Malcomson
2017-01-03 21:10:38 +00:00
parent 7255f00818
commit e0e4825897
2 changed files with 48 additions and 10 deletions
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20
src/nvim/undo.c
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@@ -2549,20 +2549,20 @@ static void u_add_time(char_u *buf, size_t buflen, time_t tt)
*/
void ex_undojoin(exarg_T *eap)
{
if (curbuf->b_u_newhead == NULL)
return; /* nothing changed before */
if (curbuf->b_u_newhead == NULL) {
return; // nothing changed before
}
if (curbuf->b_u_curhead != NULL) {
EMSG(_("E790: undojoin is not allowed after undo"));
return;
}
if (!curbuf->b_u_synced)
return; /* already unsynced */
if (get_undolevel() < 0)
return; /* no entries, nothing to do */
else {
/* Go back to the last entry */
curbuf->b_u_curhead = curbuf->b_u_newhead;
curbuf->b_u_synced = false; /* no entries, nothing to do */
if (!curbuf->b_u_synced) {
return; // already unsynced
}
if (get_undolevel() < 0) {
return; // no entries, nothing to do
} else {
curbuf->b_u_synced = false; // Append next change to last entry
}
}