One wonders here if the indefinite article a might be missing from before contention—that is, perhaps the original text read “and there began to be a contention in the wilderness”. Elsewhere in the text, we get 11 equivalent examples of “there was a contention” but none of “there was contention”; in fact, in six examples (each marked below with an asterisk), the text says that “there began to be a contention”:
For the example in Helaman 1:2, there is evidence for the omission of the a: namely, the 1874 RLDS edition omitted the a, giving “there began to be serious contention” (the 1908 RLDS edition restored the a to the RLDS text).
In the case of Alma 25:8, the original manuscript is not extant for “and there began to be (a) contention”, but the transcript in volume 1 of the critical text shows that there must have been some supralinear correction:
Alma 25:8 (line 10, page 268ªof 𝓞)
( )
BEGAN TO BE
( in) the wilderness & theLamanites began to hunt
& THERE < >^ CONTENTION
Based on the spacing between extant fragments, it is quite possible that Oliver Cowdery, the scribe in 𝓞, initially wrote “and there was a contention in the wilderness”, which he then corrected to “and there began to be contention in the wilderness”. He may have intended to correct the text to “and there began to be a contention in the wilderness”, but when he crossed out his original was, he may have also crossed out the a accidentally. It is also possible that he didn’t cross out the a but nonetheless omitted it when he copied the text from 𝓞 into 𝓟. Obviously, we are unable to determine whether the a was there or not in 𝓞. But clearly, there was some scribal correction or difference that could have led to the a being accidentally omitted.
Ultimately, the question comes down to whether the reading without the a is possible in Alma 25:8. When we consider the larger context here, we find that the text is referring to a general and continuing contention in the wilderness, not a specific or limited contention:
Thus the context suggests that contention alone, without any indefinite article a, is possible in Alma 25:8. For this reason, the critical text will retain the earliest extant reading for Alma 25:8: “and there began to be contention in the wilderness”. But the possibility remains that an original indefinite article a was accidentally omitted here in the early transmission of the text.
Summary: Maintain in Alma 25:8 the earliest extant reading: “and there began to be contention in the wilderness”; nonetheless, there is a possibility that the original text read “and there began to be a contention in the wilderness”.