$ git clone -n https://src.fedoraproject.org/rpms/libgphoto2.git /var/lib/mock/f39-build-1591873-38302/root/chroot_tmpdir/scmroot/libgphoto2
Cloning into '/var/lib/mock/f39-build-1591873-38302/root/chroot_tmpdir/scmroot/libgphoto2'...
$ git fetch origin 6ec9c50b48417b365d8e01cbc9fbc733a5c4ea87:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgphoto2
 * [new ref]         6ec9c50b48417b365d8e01cbc9fbc733a5c4ea87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ec9c50 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild