$ git clone -n https://src.fedoraproject.org/rpms/qqc2-desktop-style.git /var/lib/mock/f39-build-1499144-34744/root/chroot_tmpdir/scmroot/qqc2-desktop-style
Cloning into '/var/lib/mock/f39-build-1499144-34744/root/chroot_tmpdir/scmroot/qqc2-desktop-style'...
$ git fetch origin 213ecdf89185a23026bde9a454bb61c1f7e2b26a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qqc2-desktop-style
 * [new ref]         213ecdf89185a23026bde9a454bb61c1f7e2b26a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 213ecdf 5.111.0