[PATCH qemu-server] fix #7480: api: apply tag case-sensitivity setting on VM creation

[Jakob Klocker <j.klocker@proxmox.com>]

The case-sensitivity setting from datacenter.cfg was not checked
when tags were set during VM creation. Tags containing capital
letters were stored verbatim, while the same tags applied later
via the update endpoint were normalized. This led to inconsistent
behavior depending on whether a tag was set at creation or
afterwards.

Link: https://bugzilla.proxmox.com/show_bug.cgi?id=7480
Signed-off-by: Jakob Klocker <j.klocker@proxmox.com>
---
 src/PVE/API2/Qemu.pm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/PVE/API2/Qemu.pm b/src/PVE/API2/Qemu.pm
index e029a204..dd813e8a 100644
--- a/src/PVE/API2/Qemu.pm
+++ b/src/PVE/API2/Qemu.pm
@@ -1500,6 +1500,10 @@ __PACKAGE__->register_method({
 
                     $conf->{lock} = 'import' if $live_import_mapping;
 
+                    if (defined $conf->{tags}) {
+                        $conf->{tags} = PVE::GuestHelpers::get_unique_tags($conf->{tags});
+                    }
+
                     PVE::QemuConfig->write_config($vmid, $conf);
                 };
                 my $err = $@;
-- 
2.47.3