$ git clone -n https://src.fedoraproject.org/rpms/gnome-bluetooth.git /var/lib/mock/f40-build-2048328-48989/root/chroot_tmpdir/scmroot/gnome-bluetooth
Cloning into '/var/lib/mock/f40-build-2048328-48989/root/chroot_tmpdir/scmroot/gnome-bluetooth'...
$ git fetch origin fac9e6e262054369dc85f04ace1245a3f4aba73d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-bluetooth
 * [new ref]         fac9e6e262054369dc85f04ace1245a3f4aba73d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fac9e6e Update to 42.7