[system/kio-snapshot] autotests: autotests: try to make them less flaky on CI

Git commit 623f235340cbbb5a210f9776b6b11883cd2cdfb4 by Bharadwaj Raju.
Committed on 14/08/2026 at 18:09.
Pushed by bharadwaj-raju into branch 'master'.

autotests: try to make them less flaky on CI

M  +2    -0    autotests/prep_btrfs.sh

https://invent.kde.org/system/kio-snapshot/-/commit/623f235340cbbb5a210f9776b6b11883cd2cdfb4

diff --git a/autotests/prep_btrfs.sh b/autotests/prep_btrfs.sh
index e9e5906..8d61d68 100644
--- a/autotests/prep_btrfs.sh
+++ b/autotests/prep_btrfs.sh
@@ -37,3 +37,5 @@ rm butter-tray/sub/vol.txt
 sudo btrfs subvolume snapshot butter-tray/sub butter-tray/@sub-after-removal
 echo "again" > butter-tray/sub/vol.txt
 sudo btrfs subvolume snapshot butter-tray/sub butter-tray/@sub-after-recreation
+
+sudo btrfs filesystem sync butter-tray