$ git clone -n https://src.fedoraproject.org/rpms/tango-icon-theme-extras.git /var/lib/mock/f41-build-1041893-18994/root/chroot_tmpdir/scmroot/tango-icon-theme-extras
Cloning into '/var/lib/mock/f41-build-1041893-18994/root/chroot_tmpdir/scmroot/tango-icon-theme-extras'...
$ git fetch origin 371efa2ac59710f0868464abcf7dfc98fcd6fbae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tango-icon-theme-extras
 * [new ref]         371efa2ac59710f0868464abcf7dfc98fcd6fbae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 371efa2 Eliminate use of obsolete %patchN syntax (#2283636)