$ git clone -n https://src.fedoraproject.org/rpms/bibletime.git /var/lib/mock/f38-build-side-42-init-devel-1361692-30701/root/chroot_tmpdir/scmroot/bibletime
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1361692-30701/root/chroot_tmpdir/scmroot/bibletime'...
$ git fetch origin 934eb3bd43ecdd18897f53b7639caf2b0f4cfe96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bibletime
 * [new ref]         934eb3bd43ecdd18897f53b7639caf2b0f4cfe96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 934eb3b use java_arches to fix FTBFS