$ git clone -n https://src.fedoraproject.org/rpms/openslide.git /var/lib/mock/f41-build-838596-159724/root/chroot_tmpdir/scmroot/openslide
Cloning into '/var/lib/mock/f41-build-838596-159724/root/chroot_tmpdir/scmroot/openslide'...
$ git fetch origin ff3906d0c92ece8f1cb367e5b7090e8b9d20ca9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openslide
 * [new ref]         ff3906d0c92ece8f1cb367e5b7090e8b9d20ca9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff3906d Add gdk-pixbuf2-modules-extra dependency on F41+ to fix BMP loading