$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt6-qtbase.git /var/lib/mock/f40-build-786447-134291/root/chroot_tmpdir/scmroot/mingw-qt6-qtbase
Cloning into '/var/lib/mock/f40-build-786447-134291/root/chroot_tmpdir/scmroot/mingw-qt6-qtbase'...
$ git fetch origin 211c815234d358a5ba6faba278c11ecb7a1c2786:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt6-qtbase
 * [new ref]         211c815234d358a5ba6faba278c11ecb7a1c2786 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 211c815 Build with -msse2