$ git clone -n https://src.fedoraproject.org/rpms/qt5.git /var/lib/mock/f39-build-1469324-33842/root/chroot_tmpdir/scmroot/qt5
Cloning into '/var/lib/mock/f39-build-1469324-33842/root/chroot_tmpdir/scmroot/qt5'...
$ git fetch origin 676bdd1e652154914887bac4beaae1874a65ba2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5
 * [new ref]         676bdd1e652154914887bac4beaae1874a65ba2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 676bdd1 Really update to 5.15.11