$ git clone -n https://src.fedoraproject.org/rpms/geany.git /var/lib/mock/f39-build-1463748-33456/root/chroot_tmpdir/scmroot/geany
Cloning into '/var/lib/mock/f39-build-1463748-33456/root/chroot_tmpdir/scmroot/geany'...
$ git fetch origin b40e519d363a2d3e1749c85c4dad51d634586f72:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/geany
 * [new ref]         b40e519d363a2d3e1749c85c4dad51d634586f72 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b40e519 New upstream release: Geany 2.0