Wrong
You are referring to the palestine citizenship order of July 24 1925 which held only for the mandated period it expired, it also never bestowed actual statehood on the mandate.
See
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0ahUKEwj8uJr547vKAhWju4MKHX4ABr4QFgguMAI&url=http://cosmos.ucc.ie/cs1064/jabowen/IPSC/php/db.php?tid=2571&usg=AFQjCNFmfpmrUL2Aq4ilb2I7UBVxCQ9xXg&sig2=rZuufLWTfIEF7BK4FspzGg&bvm=bv.112064104,d.amc
Quote
In Palestine, citizenship was governed by the Palestine Citizenship Order of 24 July 1925 (Statutory Rules and Orders, I925, No. 777; which came into force on 1 August 1925), amended by various successive orders. This defined a Palestinian as a 'Turkish subject habitually resident in the territory of Palestine". The amended text of the Order of 24 July 1925 is worded as follows:
"Turkish citizens habitually resident in the territory of Palestine upon the 6th day of August 1924 shall become Palestinian citizens."
Turkish citizens born in Palestine who left Palestine before 6 August 1924 were given the right of option on condition that they could prove that they had unbroken ties with their place of origin and give formal assurances of their intention to return to Palestine. The right of option expired on 24 July 1945.
Article 7 of the Palestine Mandate required the Administration of Palestine to enact a nationality law. The law was to include provisions framed so as to facilitate the acquisition of Palestinian citizenship by Jews who take up their permanent residence in Palestine.
In pursuance of Article 7, the Palestine Citizenship Order was issued in 1925, and this order, as amended from time to time, regulated Palestine citizenship for the remaining twenty-three years of the Mandate. Subject to the right to opt for Turkish and other nationalities, all Turkish subjectsJew and non-Jewshabitually resident in the territory of Palestine became, on August 1, 1925, Palestine citizens. Other Turkish nationals born within Palestine could also acquire Palestine citizenship even though they had not been previously resident in Palestine.
Palestine citizenship could also be acquired by birth. Any person born to a father who was a Palestine citizen himself acquired Palestine citizenship whether or not the birth took place in Palestine. Moreover, any person born within Palestine who did not by his birth acquire the nationality of any other Sate was deemed to be a Palestine citizen. Finally, Palestine citizenship could be acquired by any person by means of naturalization, the main precondition being a period of residence in Palestine.
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Also see
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0ahUKEwj8uJr547vKAhWju4MKHX4ABr4QFgg0MAM&url=http://www.opendemocracy.net/lauren-banko/creation-of-palestinian-citizenship-under-international-mandate-1918-1925&usg=AFQjCNH3gM7_5ZFcFyrab8mSbBM3T5xafw&sig2=bX94yd5Sx896TUFhFdRoEQ&bvm=bv.112064104,d.amc
Quote
The mandate text required the British to create a law for the acquisition of Palestinian nationality for the Jews. This nationality would give certain rights and obligations not only to the Jewish immigrants, but also to the majority Arab population, since the mandate also stipulated that the Jewish national home policy could not prejudice the civil or religious rights of the existing majority population. Hence, the British had to walk a fine line in their legislation on nationality and citizenship, acting as a colonial power rather than as a trustee in order to draft a colonial citizenship that gave only limited civil and political rights.
End Quote
So the context of your citation lies within the mandated period and as such expired with the mandates citizenship order. May 15 1948
I'd also note that since there was no agreement, and since the Arabs refused all offers of a palestinian state during the mandated period that your references are not only out of date but taken out of context.