$ git clone -n https://src.fedoraproject.org/rpms/mingw-opencv.git /var/lib/mock/f39-build-1996475-43957/root/chroot_tmpdir/scmroot/mingw-opencv
Cloning into '/var/lib/mock/f39-build-1996475-43957/root/chroot_tmpdir/scmroot/mingw-opencv'...
$ git fetch origin 64c56dd6532a2c845d40482cd9a63a224dcc7cbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-opencv
 * [new ref]         64c56dd6532a2c845d40482cd9a63a224dcc7cbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64c56dd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild