fix(conpty): close the pseudo console only once

Apparently, for reasons unknown, closing the pseudo console more than
once causes the parent process to be killed as well.

This should fix it for now, no idea why it happens though.

Signed-off-by: Carlos Alexandro Becker <[email protected]>

exp/term/windows/conpty/conpty_windows.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"sync"
 	"syscall"
 	"unsafe"
 
@@ -28,6 +29,7 @@ type ConPty struct {
 	inPipe, outPipe     *os.File
 	attrList            *windows.ProcThreadAttributeListContainer
 	size                windows.Coord
+	closeOnce           sync.Once
 }
 
 var (
@@ -106,8 +108,9 @@ func (p *ConPty) Close() error {
 	if p.attrList != nil {
 		p.attrList.Delete()
 	}
-
-	windows.ClosePseudoConsole(*p.hpc)
+	p.closeOnce.Do(func() {
+		windows.ClosePseudoConsole(*p.hpc)
+	})
 	return errors.Join(p.inPipe.Close(), p.outPipe.Close())
 }