vim-patch:8.1.0022: repeating put from expression register fails

Problem:    Repeating put from expression register fails.
Solution:   Re-evaluate the expression register. (Andy Massimino,
            closes vim/vim#2945)
https://github.com/vim/vim/commit/833093bfb0e4a7f89b5adc66babcfa8ac09cfda9

1 files changed, 7 insertions, 0 deletions

diff --git a/src/nvim/getchar.c b/src/nvim/getchar.c
index 0379b1cadb..8dae82d137 100644
--- a/src/nvim/getchar.c
+++ b/src/nvim/getchar.c
@@ -755,6 +755,13 @@ int start_redo(long count, int old_redo)
     if (c >= '1' && c < '9')
       ++c;
     add_char_buff(&readbuf2, c);
+
+    // the expression register should be re-evaluated
+    if (c == '=') {
+      add_char_buff(&readbuf2, CAR);
+      cmd_silent = true;
+    }
+
     c = read_redo(FALSE, old_redo);
   }