$ git clone -n https://src.fedoraproject.org/rpms/foliate.git /var/lib/mock/f39-build-1462006-33295/root/chroot_tmpdir/scmroot/foliate
Cloning into '/var/lib/mock/f39-build-1462006-33295/root/chroot_tmpdir/scmroot/foliate'...
$ git fetch origin 0e984465a2d865dd10016316826b9cce873bf2b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/foliate
 * [new ref]         0e984465a2d865dd10016316826b9cce873bf2b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e98446 Fix flatpak build