flush after replying to DECRQM

refs: #1950
wez · May 4, 2022 · cee50ff · cee50ff
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diff --git a/docs/changelog.md b/docs/changelog.md
@@ -34,7 +34,7 @@ As features stabilize some brief notes about them will accumulate here.
 * Windows: wezterm will now read the default environment variables from the `HKLM\System\CurrentControlSet\Control\Session Manager\Environment` and `HKCU\Environment` and apply those to the base environment prior to applying `set_environment_variables`. [#1848](https://github.com/wez/wezterm/issues/1848)
 
 #### Fixed
-* Flush after replying to XTGETTCAP. [#1850](https://github.com/wez/wezterm/issues/1850)
+* Flush after replying to XTGETTCAP and DECRQM. [#1850](https://github.com/wez/wezterm/issues/1850) [#1950](https://github.com/wez/wezterm/issues/1950)
 * macOS: CMD-. was treated as CTRL-ESC [#1867](https://github.com/wez/wezterm/issues/1867)
 * macOS: CTRL-Backslash on German layouts was incorrect [#1891](https://github.com/wez/wezterm/issues/1891)
 * `nf-mdi-contacts` nerdfont symbol treated as zero-width [#1864](https://github.com/wez/wezterm/issues/1864)

diff --git a/term/src/terminalstate/mod.rs b/term/src/terminalstate/mod.rs
@@ -1321,6 +1321,7 @@ impl TerminalState {
 
         log::trace!("{:?} -> recognized={} status={}", mode, recognized, status);
         write!(self.writer, "\x1b[{}{};{}$y", prefix, number, status).ok();
+        self.writer.flush().ok();
     }
 
     fn perform_csi_mode(&mut self, mode: Mode) {