$ git clone -n https://src.fedoraproject.org/rpms/evolution-mapi.git /var/lib/mock/f40-build-791032-137051/root/chroot_tmpdir/scmroot/evolution-mapi
Cloning into '/var/lib/mock/f40-build-791032-137051/root/chroot_tmpdir/scmroot/evolution-mapi'...
$ git fetch origin 04908a269d52073405e4dd7a13ccdf66e88f2cc0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-mapi
 * [new ref]         04908a269d52073405e4dd7a13ccdf66e88f2cc0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04908a2 Rebuilt against new Samba 4.20rc1