Whenever, prior to the date on which conditional apportionments have been made to an applicant district for the full amount of state aid approved for the district under Section 15715, (1) if the applicant district is annexed to or otherwise included in whole in another district which is ineligible for an apportionment under this chapter, no further apportionment shall be made to the applicant district; (2) if the applicant district is annexed to or otherwise included in whole in a district which is eligible for an apportionment under this chapter and which has made or does make an application for an apportionment, the board may reconsider the applications of the applicant district and the acquiring district and make determinations and take any action with respect thereto, including the making, subject to Article 1 (commencing with Section 15700) of this chapter, of a conditional apportionment or apportionments to the acquiring district that the board may deem necessary because of such annexation or other inclusion in the acquiring district of the applicant district; (3) if a portion of the applicant district is annexed to or otherwise included in another district, the board may reconsider the application of the applicant district and may, within two years after the first apportionment made under the approval, make additional apportionments that it sees fit to the applicant district, but not in excess of the amount in which the application was originally approved, without requiring the district to issue additional bonds.