$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtimageformats.git /var/lib/mock/f39-build-1775258-41512/root/chroot_tmpdir/scmroot/qt5-qtimageformats
Cloning into '/var/lib/mock/f39-build-1775258-41512/root/chroot_tmpdir/scmroot/qt5-qtimageformats'...
$ git fetch origin 8f2c8883253247efb8625eb2189d23494e00897e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtimageformats
 * [new ref]         8f2c8883253247efb8625eb2189d23494e00897e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f2c888 Rebase to latest KDE Qt patchset collection