$ git clone -n https://src.fedoraproject.org/rpms/folder-color-switcher.git /var/lib/mock/f38-build-side-42-init-devel-1407217-31287/root/chroot_tmpdir/scmroot/folder-color-switcher
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1407217-31287/root/chroot_tmpdir/scmroot/folder-color-switcher'...
$ git fetch origin 3955a7df480833b5a8580ec7ca6797db17f5c757:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/folder-color-switcher
 * [new ref]         3955a7df480833b5a8580ec7ca6797db17f5c757 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3955a7d Initial build